simple past tense and past participle of grandfather

Exemption from new legislation or regulations.

present participle of grandfather

plural of grandfather

Third-person singular simple present indicative form of grandfather

A father of someone's parent. / (by extension) A male forefather. / (computing) The archived older version of a file that immediately preceded the father file.

(transitive, chiefly US, law) To retain discontinued laws or rules for (a thing, person or organization previously affected by them).

(transitive) To be, or act as, a grandfather to.

plural of grandfathering

plural of grandfather's clock