English
mainsborne
From mains + borne.
Proto-Indo-European *bʰer- ‘to bear, carry’
…
Proto-West Germanic *beran ‘to carry, to bear’
Old English beran ‘to carry, bear’
Old English boren
Middle English boren
English borne
Today it means
adj Carried by mains electricity.
Language periods are conventional ranges, not dates for this word.
Etymograph / mainsborne