grandfather in

Verb

grandfather in (third-person singular simple present grandfathers in, present participle grandfathering in, simple past and past participle grandfathered in)

1. (US, transitive) Synonym of grandfather.
   • In 1915, the Supreme Court ruled unanimously in Guinn v. United States that grandfather clauses were unconstitutional. […] The decision had almost no effect, however. The Oklahoma Legislature met in special session to grandfather in the grandfather clause. The new law said those who had been...2013 October 22, Alan Greenblatt, “The Racial History of the Grandfather Clause”, in NPR, archived from the original on 30 Mar 2019
   • The U.S. Army says a Kentucky National Guard soldier with aspirations of joining a U.S. Army special operations unit is grandfathered in under new regulations concerning soldiers with tattoos and asked a federal judge to dismiss his lawsuit. […] The regulations went into effect in March and ban...2014 July 14, Associated Press, “Army: Soldier grandfathered in under tattoo policy”, in The Washington Times, Washington, D.C.: The Washington Times, LLC, →ISSN, →OCLC, archived from the original on...

   Synonyms:

   grandfather