Lewis & Short

sarcĭna, ae, f. [sarcio].

  1. I. Lit., a package, bundle, burden, load, pack; more freq. in the plur., luggage (class. only in the plur.; not in Cic.); sing.: quid ego nunc agam? nisi uti sarcinam constringam et clipeum ad dorsum accommodem, Plaut. Trin. 3, 2, 93; 2, 4, 195: sarcinam inponam seni, id. Most. 2, 1, 83: essem militiae sarcina fida tuae, Prop. 4 (5), 3, 46: gravis, Hor. Ep. 1, 13, 6; Petr. 117, 11.
    In plur.: sarcinas colligere, Sall. J. 97, 4; Varr. R. R. 1, 1, 1; Caes. B. G. 3, 24; 7, 18; id. B. C. 1, 59; 3, 76; Tac. A. 1, 23; Phaedr. 2, 7, 1; 4, 2, 5.
    Esp. of the baggage of soldiers on the march, Caes. B. G. 1, 24; 2, 17; Liv. 44, 38; Hirt. B. Afr. 69: sub sarcinis aggredi, id. B. G. 8, 27.
    Poet., of the fruit of the womb: Ismenos, qui matri sarcina quondam Prima suae fuerat, Ov. M. 6, 224: sarcinam effundere, Phaedr. 3, 15, 6.
  2. II. Trop. (Ovid.), a burden, weight of cares, troubles, griefs, Ov. H. 4, 24; id. P. 3, 7, 14.
    Of government, Ov. P. 1, 2, 101: sarcina sum (tibi), id. Tr. 5, 6, 5.