īnsideō

   īnsideō sēdī, —, ēre    [1 in+sedeo], to sit upon, settle on: equo, L.: ubi Gens iugis insedit Etruscis, V.—Fig., to take place, settle, be fixed, adhere: cum in locis semen insedit: ut in animo crimen insideret: nunc insidet in optimo quoque virtus. —To take possession of, occupy: locum, L.: ea loca, inhabit, Ta.

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insidere, insidi, insessus V

sit (at or on); lie in ambush (in); be troublesome (to)