Gender: Masculine
Origin: Lithuanian
Meaning: “nimble and strong.”

The name is composed of the Lithuanian elements švit– (which is from švitrus meaning “fast; nimble; frisky”) and gailas which means “strong.”

The name was borne by a Grand Duke of Lithuania (1370-1452) he was the brother of Jogaila and was known for his pro-Russian policies. The designate name-day in Lithuania is October 25. There is a feminine version Švitrigailė whose name-day is set for October 24.


Gender: Female
Origin: Greek
Meaning “swift.”
Eng (THOO-sah); Grk (thoh-OO-sah)

Rendered in Greek as Thoösa Θόωσα, it is borne by a sea nymph in Greek mythology. She was the daughter of Phorcys and Ceto and beloved by the god Poseidon. She was associated with currents and swiftness. By Poseidon she bore the cyclops, Polypemus. She was also the sister of Echidna, and Scylla and was often depicted as a mermaid-like creature.

In recent years, it is the name of an English brand of womens’ running wear, founded in 2006 by CEO Caroline MacNally.

The name is rendered in Spanish as Toosa, (not by any means a common name), and in Lithuanian as Teosa (also very obscure).