The history of the word coffee involves several phonetic difficulties. The European languages got the name of the beverage about 1600 from the original Arabic qahwah, not directly, but through its Turkish form, kahveh. This was the name, not of the plant, but the beverage made from its infusion, being originally one of the names employed for wine in Arabic.

Sir James Murray, in the New English Dictionary, says that some have conjectured that the word is a foreign, perhaps African, word disguised, and have thought it connected with the name Kaffa, a town in Shoa, southwest Abyssinia, reputed native place of the coffee plant, but that of this there is no evidence, and the name qahwah is not given to the berry or plant, which is called bunn, the native name in Shoa being būn.

Contributing to a symposium on the etymology of the word coffee in Notes and Queries, 1909, James Platt, Jr., said:

Virendranath Chattopádhyáya, who also contributed to the Notes and Queries symposium, argued that the hw of the Arabic qahwah becomes sometimes ff and sometimes only f or v in European translations because some languages, such as English, have strong syllabic accents (stresses), while others, as French, have none. Again, he points out that the surd aspirate h is heard in some languages, but is hardly audible in others. Most Europeans tend to leave it out altogether.

Col. W.F. Prideaux, another contributor, argued that the European languages got one form of the word coffee directly from the Arabic qahwah, and quoted from Hobson-Jobson in support of this:

Col. Prideaux then calls, as a witness to the Anglo-Arabic pronunciation, one whose evidence was not available when the New English Dictionary and Hobson-Jobson articles were written. This is John Jourdain, a Dorsetshire seaman, whose Diary was printed by the Hakluyt Society in 1905. On May 28, 1609, he records that "in the afternoone wee departed out of Hatch (Al-Hauta, the capital of the Lahej district near Aden), and travelled untill three in the morninge, and then wee rested in the plaine fields untill three the next daie, neere unto a cohoo howse in the desert." On June 5 the party, traveling from Hippa (Ibb), "laye in the mountaynes, our camells being wearie, and our selves little better. This mountain is called Nasmarde (Nakīl Sumāra), where all the cohoo grows." Farther on was "a little village, where there is sold cohoo and fruite. The seeds of this cohoo is a greate marchandize, for it is carried to grand Cairo and all other places of Turkey, and to the Indias." Prideaux, however, mentions that another sailor, William Revett, in his journal (1609) says, referring to Mocha, that "Shaomer Shadli (Shaikh 'Ali bin 'Omar esh-Shādil) was the fyrst inventour for drynking of coffe, and therefor had in esteemation." This rather looks to Prideaux as if on the coast of Arabia, and in the mercantile towns, the Persian pronunciation was in vogue; whilst in the interior, where Jourdain traveled, the Englishman reproduced the Arabic.

Mr. Chattopádhyáya, discussing Col. Prideaux's views as expressed above, said:

To the above should be added the following by English writers, given in Foster's English Factories in India (1618–21, 1622–23, 1624–29): cowha (1619), cowhe, couha (1621), coffa (1628).

Let us now see what foreigners (chiefly French and Italian) write. The earliest European mention is by Rauwolf, who knew it in Aleppo in 1573. He has the form chaube. Prospero Alpini (1580) has caova; Paludanus (1598) chaoua; Pyrard de Laval (1610) cahoa; P. Della Valle (1615) cahue; Jac. Bontius (1631) caveah; and the Journal d'Antoine Galland (1673) cave. That is, Englishmen use forms of a certain distinct type, viz., cohu, coho, coffao, coffe, copha, coffee, which differ from the more correct transliteration of foreigners.

In 1610 the Portuguese Jew, Pedro Teixeira (in the Hakluyt Society's edition of his Travels) used the word kavàh.

The inferences from these transitional forms seem to be: 1. The word found its way into the languages of Europe both from the Turkish and from the Arabic. 2. The English forms (which have strong stress on the first syllable) have ŏ instead of ă, and f instead of h. 3. The foreign forms are unstressed and have no h. The original v or w (or labialized u) is retained or changed into f.

It may be stated, accordingly, that the chief reason for the existence of two distinct types of spelling is the omission of h in unstressed languages, and the conversion of h into f under strong stress in stressed languages. Such conversion often takes place in Turkish; for example, silah dar in Persian (which is a highly stressed language) becomes zilif dar in Turkish. In the languages of India, on the other hand, in spite of the fact that the aspirate is usually very clearly sounded, the word qăhvăh is pronounced kaiva by the less educated classes, owing to the syllables being equally stressed.

Now for the French viewpoint. Jardin[3] opines that, as regards the etymology of the word coffee, scholars are not agreed and perhaps never will be. Dufour[4] says the word is derived from caouhe, a name given by the Turks to the beverage prepared from the seed. Chevalier d'Arvieux, French consul at Alet, Savary, and Trevoux, in his dictionary, think that coffee comes from the Arabic, but from the word cahoueh or quaweh, meaning to give vigor or strength, because, says d'Arvieux, its most general effect is to fortify and strengthen. Tavernier combats this opinion. Moseley attributes the origin of the word coffee to Kaffa. Sylvestre de Sacy, in his Chréstomathie Arabe, published in 1806, thinks that the word kahwa, synonymous with makli, roasted in a stove, might very well be the etymology of the word coffee. D'Alembert in his encyclopedic dictionary, writes the word caffé. Jardin concludes that whatever there may be in these various etymologies, it remains a fact that the word coffee comes from an Arabian word, whether it be kahua, kahoueh, kaffa or kahwa, and that the peoples who have adopted the drink have all modified the Arabian word to suit their pronunciation. This is shown by giving the word as written in various modern languages:

French, café; Breton, kafe; German, kaffee (coffee tree, kaffeebaum); Dutch, koffie (coffee tree, koffieboonen); Danish, kaffe; Finnish, kahvi; Hungarian, kavé; Bohemian, kava; Polish, kawa; Roumanian, cafea; Croatian, kafa; Servian, kava; Russian, kophe; Swedish, kaffe; Spanish, café; Basque, kaffia; Italian, caffè; Portuguese, café; Latin (scientific), coffea; Turkish, kahué; Greek, kaféo; Arabic, qahwah (coffee berry, bun); Persian, qéhvé (coffee berry, bun[5]); Annamite, ca-phé; Cambodian, kafé; Dukni[6], bunbund[7]; Teluyan[8], kapri-vittulu; Tamil[9], kapi-kottai or kopi; Canareze[10], kapi-bija; Chinese, kia-fey, teoutsé; Japanese, kéhi; Malayan, kawa, koppi; Abyssinian, bonn[11]; Foulak, legal café[12]; Sousou, houri caff[13]; Marquesan, kapi; Chinook[14], kaufee; Volapuk, kaf; Esperanto, kafva.