Lewis & Short

ob-sŭo, ŭi, ūtum, 3, v. a.

  1. I. To sew on (very rare): obsutum caput, Ov. F. 2, 578.
  2. II. To sew up, sew together; to stop or close up (poet. and in post-Aug. prose): nares, et spiritus oris obsuitur, Verg. G. 4, 301: sporta auri obsuta, Suet. Rhet. 1 fin.: obsuta lectica, the curtains of which are sewed together all around, id. Tib. 64.