Meaning

noun a state of agitation or turbulent change or development

noun a feeling of restless agitation

originFrom Middle English unreste, equivalent to un- + rest. Cognate with West Frisian ûnrêst (“unrest”), Dutch onrust (“unrest”), German Low German Unrüst (“unrest”). Compare also Saterland Frisian Uunraue (“unrest”), German Unruhe (“unrest”), Danish uro (“unrest”), Swedish oro (“unrest”), Icelandic órói (“unrest”). Compare also Old English orrest (“battle”), Old Norse orrosta, orresta (“battle”).

Etymology from Wiktionary, CC BY-SA 3.0