overabundance/oʊvɚəˈbʌndɪnts/EtymologyFrom Middle English overaboundaunce, equivalent to over- + abundance.overabundance means an excess of what is needed or is appropriate. Lexicurio rates it Rare gem — a strength score of 75 out of 100.overabundance is pronounced /oʊvɚəˈbʌndɪnts/.nounAn excess of what is needed or is appropriate.