These
names are used by Baltic peoples.
Vytautas m LithuanianFrom the Lithuanian root
vyd- "to see" or
vyti "to chase, to drive away" combined with
tauta "people, nation". This was the name of a 15th-century Grand Duke of Lithuania, revered as a national hero in that country.
Žydrūnas m LithuanianFrom Lithuanian
žydra meaning
"light blue" (using the patronymic suffix
ūnas).