- Now Rare a normal outgrowth; natural appendage, as a fingernail
- an abnormal or disfiguring outgrowth or addition, as a bunion
Origin of excrescenceMiddle English ; from Old French ; from Classical Latin excrescentia, excrescences ; from excrescere, to grow out ; from ex-, out + crescere, to grow: see crescent
- An outgrowth or enlargement, especially an abnormal one, such as a wart.
- A usually unwanted or unnecessary accretion: “Independent agencies were an excrescence on the Constitution” (Los Angeles Times).
Origin of excrescenceMiddle English, from Latin excrēscentia, from neuter pl. of excrēscēns, excrēscent-, present participle of excrēscere, to grow out : ex-, ex- + crēscere, to grow; see ker-2 in Indo-European roots.
Middle English, early 15th century, in sense “(action of) growing out (of something else)”. From Latin excrescentia (“abnormal growths”), from excrescentem, from excrēscere, from ex- (“out”) (English ex-) + crēscere (“to grow”) (English crescent). Sense of “abnormal growth” from 1570s, from earlier excrescency (1540s in this sense).