English Rudolph

← German [[Rudolph]], [[Rudolf]] (borrowed)

← Proto-Germanic *Hrōþiwulfaz (mention)

→ English Rudy (suffix)

→ English Rudolphine (suffix)

→ Latvian Rūdolfs (cognate)

→ Dutch Ruud (mention)

→ Norwegian Rolf (cognate)

→ Old Norse Hrólfr (cognate)