cos·set (kŏs'ĭt) tr.v.
cos·set·ed, cos·set·ing, cos·sets To pamper. n. A pet, especially a pet lamb.
[Possibly from Anglo-Norman coscet, pet lamb, from Middle English cotsete, cottage-dweller, from Old English cotsǣta : cot, cottage + sǣta, -sǣte, inhabitant; see sed- in Indo-European roots.]
1659, "to fondle, caress, indulge," from a noun (1579) meaning "lamb brought up as a pet" (applied to persons from 1596), perhaps from O.E. cot-sæta "one who dwells in a cot."