линька; линять
I. verb Etymology: alteration of Middle English mouten, from Old English -mūtian to change, from Latin mutare — more at mutable intransitive verb to shed hair, feathers, shell, horns, or an outer layer periodically transitive verb to cast off (an outer covering) periodically; specifically to throw off (the old cuticle) — used of arthropods • molter noun II. noun the act or process of molting; specifically ecdysis