"Zelik" is the Yiddish form of the German "Selig" (which means "Holy.")
The name can (but does not necessarily have to) be a Yiddish rendition of Solomon.
[An analogous situation pertains to my own name. In English I am Kenneth, but my Hebrew name (by which I am called up to the Torah when shuls are operational) is Kalman, a name that derives from the Greek "Kalonymos."].
Ken Ryesky, Petach Tikva, Israel kenneth.ryesky@...
RAISKY/REISKY, ARONOV, SHKOLNIK(OV), AEROV; Gomel, Belarus
GERTZIG, BRODSKY; Yelizavetgrad, Ukraine
BRODSKY, VASILESKY; Odessa, Ukraine
IZRAELSON, ARSHENOV; Yevpatoriya, Ukraine (Crimea)