oppigneratio Save DMLBS oppigneratio [LL] 1 (act of) putting as surety, mortgaging. suae fidei interpositione et domus ~eratione W. Malm. Mir. Mariae 197. 2 (act of) bespeaking or committing. oppignero ‥ i. subarrare vel confirmare ‥ inde oppigneratus, ~eratio Osb. Glouc. Deriv. 447.