Lewis & Short

insĭdĕo, sēdi, sessum, 2, v. n. and a. [in-sedeo], to sit in or upon any thing; mostly with dat. (class.).

  1. I. Neutr.
    1. A. Lit.: equo, Liv. 7, 6, 5: curru insidens, Sen. Med. 29: solo, Suet. Aug. 82.
      1. 2. To settle: ubi Lydia quondam jugis insedit Etruscis, Verg. A. 8, 479.
    2. B. Trop., to be seated, fixed, or stamped in, to adhere to: cum in locis semen insedit, Cic. N. D. 2, 51, 128: longus morbus, cum penitus insedit, when it has become deeply seated, Cels. 3, 1: insidens capulo manus, i. e. keeping firm hold of the handle, Tac. A. 2, 21: nihil quisquam unquam, me audiente, egit orator, quod non in memoria mea penitus insederit, remained thoroughly fixed in my mind, Cic. de Or. 2, 28, 122: insidebat in ejus mente species eloquentiae, was firmly stamped on his mind, id. Or. 5, 18: voluptas, quae penitus in omni sensu implicata insidet, id. Leg. 1, 17, 47: cum hic fervor concitatioque animi inveteraverit, et tamquam in venis medullisque insederit, has firmly seated itself, id. Tusc. 4, 10, 24.
  2. II. Act., to sit or be situated upon, stand upon, take place upon, occupy.
    1. A. Lit.: currum, Varr. L. L. 5, 22: Joppe insidet collem, Plin. 5, 13, 14, § 69.
    2. B. Transf., to take possession of a place, to hold, occupy: locum, Liv. 21, 54, 3: juga, Tac. A. 2, 16: militibus arcem, Liv. 26, 44, 2: insidere vias examina infantium solebant, Plin. Pan. 26, 1: Aventinum, Liv. 9, 34, 3; 3, 50, 13; Sall. H. Fragm. 1, 9 Dietsch: medium mare, Flor. 4, 8, 2: arcem Capitolii, id. 3, 21, 7: ea loca, inhabit, Tac. A. 12, 62.
      Pass.: viaeque omnes hostium praesidiis insidentur, Liv. 25, 13, 2: saltus circa insessus ab hoste, id. 7, 34, 1: per montes praesidiis nostris insessos, Tac. A. 13, 9: insessus iterum Alpibus, id. H. 3, 1: insessum diris avibus Capitolium, occupied as a perch, id. A. 12, 43.