inlaw

noun

A person who is under the protection of the law rather than outside it.

Example sentence

“In medieval times, an inlaw could count on the full protection of the courts.”

Usually written with a hyphen: mother-in-law, in-laws. 'The in-laws' informally means your spouse's family as a group.

Related words

firstbornThe oldest child in a family; the one born before any brothers or sisters.godparentSomeone who promises at a child's baptism or naming ceremony to help raise the child, traditionally in matters of faith.newbornA baby that has just been born.goddaughterA girl for whom a godparent takes responsibility at her baptism.babyA very young child, from birth until around the time it learns to walk.godsonA boy for whom a godparent takes responsibility at his baptism.