IPA: /ˈstɛpˌfæmɪli/
KK: /ˈstɛpˌfæmɪli/
A family that includes one or more children from a previous relationship of one or both parents.
After the marriage, they became a stepfamily with three children from previous marriages.
Stepfamily → It is formed from "step" (from Old English "stæpe", meaning a step or degree) and "family" (from Latin "familia", meaning a household or family). The word "stepfamily" refers to a family formed by the marriage of one partner to someone who has children from a previous relationship, thus creating a new family structure that includes steps or degrees of relation.
Think of 'step' as a degree of relationship and 'family' as a household. This helps you remember that a stepfamily is a family formed by taking a step into a new relationship.