prewash
1 of 2verb
pre·wash ˌprē-ˈwȯsh 
-ˈwäsh,
chiefly Midland also -ˈwȯrsh,
or -ˈwärsh
variants or pre-wash
prewashed or pre-washed; prewashing or pre-washing
transitive verb
: to wash (something) prior to sale, use, etc.
prewash a sweater before wearing it
The vegetables are prewashed before they are packaged and sold.
prewashed
ˌprē-ˈwȯsht
adjective -ˈwäsht
chiefly Midland also -ˈwȯrsht
or -ˈwärsht
a pair of prewashed jeans
bought a bag of prewashed spinach
prewash
2 of 2adjective
pre·wash ˈprē-ˌwȯsh
-ˌwäsh,
chiefly Midland also -ˌwȯrsh,
or -ˌwärsh
variants or pre-wash
: done or used before washing something
a prewash stain remover
the machine's prewash cycle
Word History
First Known Use
Verb
1926, in the meaning defined above
Adjective
1902, in the meaning defined above