Pronounced: GAPE-seed, noun
Notes: I don’t think I’ve run across this word
The word rallentando means “slackening; becoming slower or winding down”; it is used as a musical direction.
Our word came into English in the early 1800s
Background / Comments
I know the abbreviation used on sheet music (rall.), but I didn’t know the word that the abbreviation stood for — thus, this was a word that I knew, but didn’t know that I knew. Our word is an Italian word; a gerund of rallentare (to slow down).