stepsibling
The child of one's stepparent by a previous relationship.
Noun
- The child of one's stepparent by a previous relationship.
- With multiple stepparents, stepsiblings, half siblings and pseudosiblings, it’s a whole new type of family[…]. - 2007 April 19, Kate Murphy, “Stepfamilies Try to Stretch Their Space”, in New York Times:
Synonyms: step
Origin
Etymology tree Proto-Indo-European *(s)tew- Proto-Germanic *steupa- Proto-West Germanic *steupa- Old English stēop- Middle English step- English step- English sibling English stepsibling From step- + sibling.