half-sibling-in-law
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English
[edit]Etymology
[edit]From half-sibling + -in-law or half- + sibling-in-law.
Noun
[edit]half-sibling-in-law (plural half-siblings-in-law)
- The half sibling of one's spouse.
- The spouse of one's half sibling.
- The spouse of the half sibling of one's spouse.