prestamp

verb

pre·​stamp ˌprē-ˈstamp 

variants or pre-stamp

prestamped or pre-stamped; prestamping or pre-stamping

transitive verb

: to attach a stamp to (something) in advance

prestamp an envelope

The postcards have been prestamped.

prestamped adjective

or pre-stamped

bought prestamped envelopes

Word History

First Known Use

1850, in the meaning defined above