redound

UK: /rɪˈdaʊnd/ US: (ri dound′)

WordReference Random House Unabridged Dictionary of American English © 2025

re•dound  (ri dound′), v.i. 

1. to have a good or bad effect or result, as to the advantage or disadvantage of a person or thing.
2. to result or accrue, as to a person.
3. to come back or reflect upon a person as to honor or disgrace (usually followed by on or upon).

• Latin redundāre to overflow, equivalent. to red- red- + undāre to surge (derivative of unda wave; compare undulate); compare redundant
• Middle French redonder
• Middle English redounden 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::

redound / rɪˈdaʊnd/ verb

1. (intransitive) followed by to: to have an advantageous or disadvantageous effect (on): brave deeds redound to your credit
2. (intransitive) followed by on or upon: to recoil or rebound
3. (transitive) to reflect; bring: his actions redound dishonour upon him

Etymology: 14th Century: from Old French redonder, from Latin redundāre to stream over, from red- re- + undāre to rise in waves, from unda a wave