Family name origins & meanings
- German : probably a nickname for an irascible man, from rasen ‘to rage’ + the Slavic suffix -ni(c)k.
- Perhaps an Americanized spelling of Slovenian Resnik or of Hrastnik, a topographic name for someone who lived by an oak tree, from hrast ‘oak’, or a habitational name for someone from any of numerous places called Hrastje, named with this word.