Pronounced: lawng-guh-NIH-muh-tee, noun
Notes: Both of my guesses were wrong
The word senectitude simply means “old age”
This word came into English in the late 1700s
Background / Notes
Our word comes from the Latin word senectus (old age), which came from senex (old). “Old age” is a simpler word – only two syllables – so I’m not surprised it is not widely used.