The process of creating or introducing flaws; causing damage or imperfection (rarely used).
From 'flaw' (as a verb, meaning 'to crack' or 'to create flaws') plus the gerund/present participle suffix '-ing' (from Old English). This creates either a verb in continuous form or a noun describing the action.
Using 'flaw' as a verb is itself uncommon in modern English—you'd say 'damage' or 'harm' instead—so 'flawing' is doubly rare, making it almost invisible in actual conversation!
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