assimulate /əˈsɪmjʊleɪt/ verb2 •(no longer used) To assimilate.You will remember the exact analogy — that trees grow by attracting and assimulating to themselves the terrestrial atmosphere which is thrown from all the planets[…] — 1857 •(no longer used) To feign; to counterfeit; to simulate. formsassimulated · assimulating · assimulates