English

admarginal

From ad- + marginal.

Proto-Indo-European *h₂éd ‘near, at’

Proto-Italic *ad ‘toward, to, on, up to, for’

Latin ad ‘to, towards’

English ad-

Proto-Indo-European *mórǵs ‘boundary, border’

Latin margō ‘margin’

Medieval Latin marginālis

Today it means

adj Along a margin

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

Etymograph / admarginal