This trend for words to display relationships is very helpful - until you get to a word like spermaceti.
Spermaceti is the waxy substance obtained from the oil in the head of a sperm whale.
photo by Gabriel Barathieu
It may act as the whale's aid to buoyancy, or it may help the whale with echo-location.
Spermaceti smells wonderful, and was used formerly to make candles and perfumes.
It has nothing at all to do with either sperm or spaghetti.
...I suppose we must be grateful for that, mustn't we.
Word Not To Use Today: spermaceti. This word comes from the Latin sperma cēti, whale sperm. If it's Latin sperma means, yes, sperm, and if Greek it means seed. The Latin cētus means whale, from the Greek kētos.