Origin: ME sibb < OE, kinsman, kinship, akin to Ger sippe, kinship < IE *s(w)ebh-, of the same kind (> OHG Swaba, Swabian) < base *se-, apart > L se
See sib in American Heritage Dictionary 4
Origin: Middle English sibbe
Origin: , from Old English sibb; see s(w)e- in Indo-European roots.
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