English

gainside

From gain + side.

A compound of gain + side

Proto-Indo-European *ḱóm ‘next to’

…

Proto-Germanic *gagana ‘back’

Proto-Germanic *gagną

Old Norse gagn ‘benefit’

Middle English gayn ‘profit’

English gain

Proto-Germanic *sīdaz ‘drooping’

Proto-Germanic *sīdǭ ‘side’

Old English sīde ‘side’

Middle English side

English side

Today it means

noun The side on which gain, increase, or prosperity is accrued; the upside.

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

Etymograph / gainside