the.com/falsetto

means A high, artificial singing or speaking voice produced above a person's normal vocal range, especially by male singers.

from From Italian falsetto, a diminutive of falso, 'false' — itself from Latin falsus. The name is a little judgment built into the word: early musicians heard this airy upper register as a 'false' voice, distinct from the chest voice they considered a man's 'true' one. The diminutive ending softens the insult slightly, as if to say 'a small falseness' rather than outright fakery.