PERTURB

perturb. Perturb, v.t. to disquiet, disturb, vex, confuse

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Per‐turb″ (?), v. t. [[L. perturbare, perturbatum; per + turbare to disturb, fr. turba a disorder: cf. OF. perturber. See Per-, and Turbid.]] 1. 1. To disturb; to agitate; to vex; to trouble; to disquiet.
Ye that . . . perturb so my feast with crying. Chaucer. 2. 2. To disorder; to confuse. Sir T. Browne.