betacism

CIDE DICTIONARY

betacism, n. 

 Excessive or extended use of the b sound in speech, due to conversion of other sounds into it, as through inability to distinguish them from b, or because of difficulty in pronouncing them.  [Webster 1913 Suppl.]

ROGET THESAURUS

betacism

Language

N language, phraseology, speech, tongue, lingo, vernacular, mother tongue, vulgar tongue, native tongue, household words, King's English, Queen's English, dialect, confusion of tongues, Babel, pasigraphie, pantomime, onomatopoeia, betacism, mimmation, myatism, nunnation, pasigraphy, lexicology, philology, glossology, glottology, linguistics, chrestomathy, paleology, paleography, comparative grammar, literature, letters, polite literature, belles lettres, muses, humanities, literae humaniores, republic of letters, dead languages, classics, genius of language, scholarship, lingual, linguistic, dialectic, vernacular, current, bilingual, diglot, hexaglot, polyglot, literary, syllables govern the world.