"relating to or expressing prayer, being in the form of a prayer or supplication," 1630s, from Late Latin precatorius "pertaining to petitioning," from precatorem "one who prays," agent noun from precari "to pray" (from PIE root *prek- "to ask, entreat").
precatory overtures
pre-atomic
prebend
Precambrian
precarious
precast
precatory
precaution
precautionary
precautious
precede
precedence