Pronounced: fay-AHNS (alt: fie-AHNS), noun
Notes: I don’t think I’ve every seen this word
The word pinnate means “having the look of a feather, in shape or arrangement; botanical term for symmetrical, blade-like leaves”
This word came into English in the late 1600s
Background / Comments
Our word comes from the Latin word pinnātus (feathered; winged). I think this definition was in my mind, but when I saw that it could be used to describe leaves, I’m pretty sure that this is one of the words from my childhood when we have a leaf identification book.