Lexical Definition

‎דְּרוֹר‎ dᵉrôwr (der-ore') swallow ^H:N-F
the same as ‎דְּרוֹר‎, applied to a bird

swallow.

• the swift, a kind of swallow

1) a swallow, bird

Brown-Driver-Briggs

II. ‎דְּרוֺר‎ noun feminine^{Ps 84:4*} swallow Ps 84:4* (|| ‎צִפּוֺר‎), Che (q. v.) makes simile of quiet, peace, security, and supplies ellipsis; in simile, Prov 26:2 ‎כַּצִפּוֺר‎ ‎לָנוּד כַּדְּרוֺר לָעוּף‎ (of groundless curse, which does not alight, i.e. is not fulfilled).

Brown-Driver-Briggs References