plural of co-father-in-law

The father of one's son- or daughter-in-law; that is, the father-in-law of one's child, or, the father of one spouse in relation to the father of the other spouse; either of two or more men whose children marry each other, such as the father of a bride vis-à-vis the father of the groom.

(rare) One's spouse's sibling's spouse; either of two (or more) people who marry siblings, from the perspective of the other.

(uncommon) One's spouse's brother-in-law (one's spouse's sibling's husband), especially one's wife's sister's husband; either of two (or more) men who marry sisters, in relation to the other; the brother of one spouse in relation to the siblings of the other spouse.

An adage which proposes that every act has unintended consequences.

(rare, nonstandard) the grandfather of one's grandson- or granddaughter-in-law; that is, the grandfather of one spouse in relation to the grandparents of the other spouse.

(law) due process

To promulgate law. / (law, dated) To present the law that applies to a given case. / (idiomatic) To authoritatively or dogmatically assert what is permitted or not permitted.

plural of co-mother-in-law

plural of co-brother-in-law