Northern Wintun (16a) utilizes a term, also applied to co-wife or co-husband, which signifies parallel cousin of like sex and step-sibling of like sex; the four usual sibling terms are also employed.
Source: wiktionary
Step-sibling
Synonyms for "step-sibling" (1 found)
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Noun(1 words)
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.