Lewis & Short

2. sub-sĕro, no perf., sertum, 3, v. a., to put or insert under (late Lat.).

  1. * I. Lit.: subsertis manibus, App. M. 7, p. 200, 23.
  2. II. Trop.: res monuit super Eutherio pauca subserere, to add, subjoin, Amm. 16, 7, 4; 14, 11, 3.