Strong’s Hebrew
H1154 — becer
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
בֶּסֶר
becer — pronounced beh'-ser
from an unused root meaning to be sour; an immature grape:--unripe grape.
1 occurrence in the KJV.
Job 15:33
He shall shake off his unripe grape as the vine, and shall cast off his flower as the olive.