sib

Etymology

From Middle English sib, from Old English sibb (“related, akin, sib”), from Proto-Germanic *sibjaz (“related”), from Proto-Indo-European *sebʰ-, *swebʰ- (“one's own”). Cognate with West Frisian besibbe (“related”), Middle Dutch sibbe (“related”), Middle Low German sibbe (“related”), Middle High German sippe (“related”), Icelandic sifi (“related”).