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English frock
← Old English rocc (cognate)
← Old English frocga (inherited)
← Danish rok (cognate)
← German Rock (cognate)
← English defrock (link)
← English disfrock (link)
← English unfrock (link)
← English frog (link)
← Middle English frok (inherited)
← Middle English frokke (mention)
← Middle English froke (inherited)
← Middle English frogge (mention)
← Old French froc (derived)
← Proto-Germanic *hrukkaz (derived)
← Proto-West Germanic *hrok (mention)
← Old High German hroch (cognate)
← Old High German roch (mention)
← Proto-Indo-European *kreḱ- (derived)
← Latin roccus (mention)
← Latin rocus (mention)
← Dutch rok (cognate)
← Old Norse rokkr (cognate)
← Saterland Frisian Rok (cognate)

→ English unfrock (prefix)
→ English disfrock (prefix)
→ English frockless (suffix)
→ English underfrock (prefix)
→ English housefrock (compound)
→ English befrocked (confix)
→ English frockish (suffix)
→ English frocklike (suffix)
→ Welsh ffrog (borrowed)
→ German Frack (borrowed)
→ Faroese frakki (derived)
→ French frac (mention)
→ Fiji Hindi faraak (borrowed)
→ Icelandic frakki (derived)
→ Luxembourgish Frack (derived)
→ Ligurian vestî (link)
→ Dutch frak (derived)
→ Pennsylvania German Frack (borrowed)
→ Saterland Frisian Rok (link)