Webster's Revised Unabridged Dictionary · 1913

Ostent

Ostent , noun

[Latin ostentus, ostentum, from ostendere (p. p. ostensus and ostentus) to show. See Ostensible.]

1.
Appearance; air; mien. — Shakespeare
2.
Manifestation; token; portent. — Dryden
We asked of God that some ostent might clear Our cloudy business, who gave us sign. — Chapman