For most English speakers, the name for the letter is pronounced as /eɪtʃ/ and spelled "aitch"[1] or occasionally "eitch". The pronunciation /heɪtʃ/ and the associated spelling "haitch" is often considered to be h-adding and is considered nonstandard in England.[2] It is, however, a feature of Hiberno-English,[3] as well as scattered varieties of Edinburgh, England, and Welsh English,[4] and in Australia and Nova Scotia.
The perceived name of the letter affects the choice of indefinite article before initialisms beginning with H: for example "an H-bomb" or "a H-bomb". The pronunciation /heɪtʃ/ may be a hypercorrection formed by analogy with the names of the other letters of the alphabet, most of which include the sound they represent.[5]
The haitch pronunciation of h has spread in England, being used by approximately 24% of English people born since 1982,[6] and polls continue to show this pronunciation becoming more common among younger native speakers. Despite this increasing number, the pronunciation without the /h/ sound is still considered to be standard in England, although the pronunciation with /h/ is also attested as a legitimate variant.[2]
Authorities disagree about the history of the letter's name. The Oxford English Dictionary says the original name of the letter was [ˈaha] in Latin; this became [ˈaka] in Vulgar Latin, passed into English via Old French [atʃ], and by Middle English was pronounced [aːtʃ]. The American Heritage Dictionary of the English Language derives it from French hache from Latin haca or hic. Anatoly Liberman suggests a conflation of two obsolete orderings of the alphabet, one with H immediately followed by K and the other without any K: reciting the former's ..., H, K, L,... as [...(h)a ka el ...] when reinterpreted for the latter ..., H, L,... would imply a pronunciation [(h)a ka] for H.[7]