Strong’s Greek
G4425 — ptuon
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
πτύον
ptuon — pronounced ptoo'-on
from 4429; a winnowing-fork (as scattering like spittle):--fan. see GREEK for 4429
2 occurrences in the KJV.
Matthew 3:12
Whose fan is in his hand, and he will throughly purge his floor, and gather his wheat into the garner; but he will burn up the chaff with unquenchable fire.
Luke 3:17
Whose fan is in his hand, and he will throughly purge his floor, and will gather the wheat into his garner; but the chaff he will burn with fire unquenchable.