chelidonias

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

chĕlīdŏnĭas, ae, m., = χελιδονίας (pertaining to the swallow),

the west wind , blowing after the 22 d of Feb. (after the arrival of the swallows), Plin. 2, 47, 47, § 122.