Calypso (Καλυψώ) comes from the Greek kalyptō, meaning "to conceal" or "to cover." In Homer's Odyssey, Calypso is the nymph who holds Odysseus captive on her island for seven years.
Calypso is rare as a given name but rising — chosen by parents drawn to Greek mythological depth.
Calypso reduces to three — the number of hidden depth.