Undictionary:supernumerary

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English

Adjective

supernumerary (comparative supernumerarierer, superlative most supernumerariest (rare))

1. (Linguistics) Having more syllables than can be strictly accounted for on etymological grounds.

Etymolology

Calque of Greek huperorarithmetikós ("having more syllables than etc.") < huper ("over") + something + arithmós ("number") + some more.