youthfulness
simian
Neosporin
nuptials
separately
yahooism
It’s getting very difficult to think of Y words that haven’t been used already.
In what dialect is nuptials a three syllable word?
medical
Go away !
Longfellow
whatchamacallit
Thingamajig
glorious
scrupulous
spectroheliokinematograph
hilarious
sumptuary
Yermolai
Indianapolis
sassafras
sobriety
yellowest