Words that come from Proto-Indo-European se(n)g-

6 words across 3 languages descend from Proto-Indo-European se(n)g- — including segt, sega, galvassega, segti, sega, se(n)ʔg-.

See the etymology of se(n)g- itself →

Latvian (3)

Lithuanian (2)

Proto-Balto-Slavic (1)