English

realarm

From re- + alarm.

Formed from re- + alarm

Proto-Italic *wre- ‘again’

English re-

Proto-Indo-European *h₂er- ‘to fit, to fix, to put together, to slot’

Middle French alarme

Middle English alarme

English alarm

Today it means

verb To alarm again.

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