Where does “названый” come from?

названый (Russian) comes from Russian назва́ть, from Russian зва́ть, from Old East Slavic зъвати, from Proto-Slavic zъvati, from Proto-Indo-European ǵʰewH- — to call on, invoke.

названый (Russian): sworn, blood

Definitions

sworn, blood

Ancestry of “названый”, step by step

Step	Language	Word	Meaning
1	Russian	назва́ть	to name, to specify
2	Russian	зва́ть	to call
3	Old East Slavic	зъвати	—
4	Proto-Slavic	zъvati	to call
5	Proto-Indo-European	ǵʰewH-	to call on, invoke

Every word from Proto-Indo-European ǵʰewH- →Every word from Proto-Slavic zъvati →Every word from Old East Slavic зъвати →