In a manner that is endurable or tolerable; in a way that can be borne or sustained.
From 'endurable' plus '-ly' suffix (from Old English '-lic', like/similar), forming an adverb modifying verbs or adjectives related to endurance.
Adding -ly to endurable creates 'endurably'—a rare adverb you encounter in philosophical texts discussing whether existence itself can be endurably experienced without despair.
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