obtestation

enUK

ob·test

O0016700 (ŏb-tĕst′)tr.v. ob·test·ed, ob·test·ing, ob·tests To supplicate; entreat.
[Latin obtestārī : ob-, to; see ob- + testārī, to call as a witness (from testis, witness; see trei- in Indo-European roots).]
ob′tes·ta′tion n.