Strong’s Greek
G3653 — olunthos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ὄλυνθος
olunthos — pronounced ol'-oon-thos
of uncertain derivation; an unripe (because out of season) fig:--untimely fig.
1 occurrence in the KJV.
Revelation 6:13
And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind.