In a way that is unusual, surprising, or difficult to understand; in a peculiar manner.
From 'strange' plus the adverb suffix '-ly.' 'Strange' comes from Old French 'estrange,' from Latin 'extraneus,' meaning 'foreign' or 'external'—things unknown seem strange because they come from outside our experience.
The word 'strange' originally meant 'foreign' in Latin—'extraneus'—because things from outside your village naturally seemed weird and unfamiliar, so the word 'strangely' literally means 'in a foreign way.'
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