English

innerve

From in- + nerve.

Formed from in- + nerve

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Proto-Indo-European *(s)neh₁- ‘to spin (thread), to sew’

…

Proto-Italic *(s)nēuros

Old Latin *neuros

Medieval Latin nervus

Middle English nerve ‘a nerve’

English nerve

Today it means

verb To innervate

Language periods are conventional ranges, not dates for this word.