colegislate

verb

1. (uncommon)To necessarily bring about a statute together with another legislative body or legislature, to be a colegislator.

   “Even in Congress the States seem to bear a major vote. No act has gone beyond federal limits—many important ones have stopped far short. The States, on the other hand, keep up an almost incessant siege. There is scarcely an article which some of them have not co­legislated upon.”