English

goldback

From gold + back.

A compound of gold + back

Proto-Indo-European *ǵʰelh₃- ‘green, yellow’

…

Proto-Germanic *gulþą ‘gold’

Proto-West Germanic *golþ

Old English gold ‘gold’

Middle English gold ‘gold’

English gold

Proto-Germanic *baką ‘back’

Proto-West Germanic *bak

Old English bæc

Middle English bak ‘the back’

English back

Today it means

noun A kind of gold certificate with an orange back.

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

Etymograph / goldback