Mid 16th century. From classical Latin pignerātiōn-, pignerātiō (in post-classical Latin also pignoration-, pignoratio) action of pledging from pignerāt-, past participial stem of pignerāre + -iō.
Definition of pignoration in US English:
pignoration
nounˌpɪɡnəˈreɪʃn
rare, literary
The action of pledging or pawning something.
Origin
Mid 16th century. From classical Latin pignerātiōn-, pignerātiō (in post-classical Latin also pignoration-, pignoratio) action of pledging from pignerāt-, past participial stem of pignerāre + -iō.