1520s, "worthy of belief," from credit (v.) + -able. Meaning "reputable, bringing credit or honor" is from 1650s. Related: Creditably; creditability; creditableness.
the student's effort on the essay--though not outstanding--was creditable
credentials
credenza
credibility
credible
credit
creditable
credit-card
creditor
credo
credulity
credulous
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