"pertaining to an orator or oratory," 1580s, from orator or oratory + -ical, or else from Latin oratorius "pertaining to an orator or to speaking or pleading" (see oratory (n.1)). Related: Oratorically. Earlier form was oratorial (1540s).
oratorical prose
orangery
orangutan
orate
oration
orator
oratorical
oratorio
oratory
orb
orbed
orbicular
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