Lewis & Short

mănŭlĕa (al. leg. ap. Vitr. mănucŭla or mănucla), ae, f. [1. manus].

  1. * I. A long sleeve reaching to the hand, i. q. manica: quid tu amicam times ne te manulea cajet? Plaut. Fragm. ap. Fulg. Contin. Verg. p. 163 Muncker; v. cajo, and cf. manuleus.
  2. II. The trigger of a catapult, which held the cord in tension, Vitr. 10, 15, 4.