In a way that brings honor, respect, or good reputation; done in a manner that reflects well on someone.
From 'creditable' (worthy of credit or praise) plus the adverb suffix '-ly'. Creditable comes from Latin 'creditus' (believed, trusted), from 'credere' (to believe or trust).
This word represents a fascinating shift in meaning from 'believed' to 'praiseworthy'—the idea that if something is trustworthy enough to believe in, it must be good! It shows how trust and quality became linked in English.
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