One who lies down or reclines; a person in a lying or reclining position.
Agent noun created from 'downlie,' adding the '-er' suffix (Old English 'ra') to indicate someone who performs the action of lying down.
Agent nouns like 'downlier' (one who downlies) show how English can create new words on the fly—'teacher,' 'runner,' and 'downlier' all follow the same pattern!
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