Brown-Driver-Briggs (BDB)
H3563a
H3563a כּוֹס cup H3563b כּוֹס n. [m.] a kind of owl
Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain
Strong's H3563 · Hebrew
kowc
koce
from an unused root meaning to hold together; a cup (as a container), often figuratively, a lot (as if a potion); also some unclean bird, probably an owl (perhaps from the cup-like cavity of its eye)