Lewis & Short

pulvīnus, i, m., prop. an elevation.

  1. I. A cushion, bolster, squab, pillow to sit or lie upon: mane pulvinum, Plaut. Stich. 1, 2, 38: Crassum pulvinus poposcisse, Cic. de Or. 1, 7, 29; id. Verr. 2, 5, 11, § 27; id. Fam. 9, 18, 4: epistula super caput in pulvino posita, Sall. J. 71, 4: epistulam pulvino subicere, Curt. 3, 6, 7; Nep. Pelop. 3, 2.
    1. B. Transf., a seat of honor: honestiorem te aut turpiorem potest facere pulvinus? Sen. Ira, 3, 37, 4; Cels. 3, 18; Sen. Cons. ad Marc. 16, 2; Suet. Tib. 73; id. Calig. 12; Mart. 3, 82, 7; Juv. 3, 154.
  2. II. An elevation in the fields, a raised border, ridge, bank, bed, Varr. R. R. 1, 35, 1; Col. 11, 3, 20; Plin. 17, 21, 35, § 159; 19, 4, 20, § 60; 22, 22, 34, § 76; Pall. 3, 24, 13; Plin. Ep. 5, 6, 16.
  3. III. A bolstering or surbase of brick, to cover the joint between the walls and floor of a barn, Col. 1, 6, 13.
  4. IV. A sand-bank in the sea, Serv. Verg. A. 10, 302.
  5. V. A structure of stone in the water, upon which to erect a pillar, Vitr. 5, 12, 3.
  6. VI. A projecting part of a catapult, the pillow, bolster, Vitr. 10, 15.