obsecration

verb (used with object), ob·se·crat·ed, ob·se·crat·ing.

1. to entreat solemnly; beseech; supplicate.

verb

1. (tr) a rare word for beseech

n.late 14c., from Latin obsecrationem (nominative obsecratio) “a beseeching, imploring, supplication, entreaty,” noun of action from past participle stem of obsecrare “to beseech, entreat” (on religious grounds), from ob- (see ob-) + sacrare “to make or declare sacred” (see sacred).