Greek word
phthinopōrinós
φθινοπωρινός
What it means
akin to the base of phtheírō) and opṓra
akin to the base of phtheírō (φθείρω)) and opṓra (ὀπώρα) (meaning late autumn); autumnal (as stripped of leaves)
Where it comes from
from derivative of (to wane
How the King James translates it
Every place it appears 1
Jude1:12