Electio est creditoris
Defined in 2 dictionaries — Ballentine's (1916), Stimson (1881)
Ballentine's Law Dictionary
James A. Ballentine · 1916
The creditor has his choice.
Glossary of Technical Terms, Phrases, and Maxims of the Common Law
Frederic Jesup Stimson · 1881
debitoris, /. The creditor or debtor has the election. Electio semel facta non patitur regressum: election made does not admit of recall.