-maniaccomb. form
Primary stress is attracted to the first syllable of this combining form and vowels may be reduced accordingly; see e.g.
philatelomaniac n.Origin: Formed within English, by conversion. Etymon: maniac n.
Etymology: < maniac n., usually after abstract nouns in -mania comb. form.These formations appear from the early 19th cent. onwards (bibliomaniac n. may be the earliest). The majority are first attested in the second half of the 19th cent. 20th-cent. examples are mainly of rare occurrence (the blend ecumaniac n. is an exception). A small number of rarely occurring formations do not correspond with nouns in -mania comb. form. Compare the much rarer -mane comb. form. In a small number of cases an adjectival formation in -maniac is attested earlier than a corresponding noun, as e.g. Celtomaniac adj., Russomaniac adj.
This entry has been updated (OED Third Edition, September 2000; most recently modified version published online March 2022).