English

aldermanic

From alderman + -ic (suffix meaning ‘of or pertaining to’ forming adjectives).

Formed from alderman + -ic

Old English ealdorman

Middle English alderman ‘the head or warden of a guild’

The story

From alderman + -ic (suffix meaning ‘of or pertaining to’ forming adjectives).

adj Of or pertaining to an alderman (“member of a municipal legislative body in a city or town”) or group of aldermen.

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

Etymograph / aldermanic