From Middle English abyen, abien, abiggen, from Old English ābyċġan (“to buy; pay for; buy off; requite; recompense; redeem; perform; execute”), from Proto-Germanic *uzbugjaną, equivalent to a- + buy. Cognate with Gothic ???????? (usbugjan).
aby (third-person singular simple present abys, present participle abying, simple past and past participle abought)
- (transitive, obsolete) To pay for; to buy. [12th-16th c.]
- (transitive, archaic) To pay the penalty for; to atone for, to make amends. [from 12th c.]
- (intransitive, obsolete) To pay the penalty; atone. [12th-16th c.]
- (transitive, archaic) To pay as penalty, to suffer. [from 12th c.]
- (intransitive, obsolete) Endure; remain. [14th-16th c.]
- (transitive, obsolete, now limited to Scotland) Endure; experience; tolerate. [from 16th c.]