In a way that shows you strongly desire something that belongs to someone else, with envious longing.
From covet (to desire) + -ing (present participle) + -ly (adverb suffix). Covet comes from Old French coveitier, possibly from Latin cupiditas (desire).
Writers use 'covetingly' to show a character's moral struggle—that lustful, guilty glance reveals more about personality than a paragraph of narration could.
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