backstamp
1 of 2transitive verb
: to stamp on the back
specifically : to stamp (a piece of mail) with the date of receipt and the name of the receiving post office along the transportation route
backstamp
2 of 2noun
"
: a stamp (such as a date stamp or postmark) on the back of a piece of mail
Word History
Etymology
Transitive verb
back entry 1 + stamp
First Known Use
Transitive Verb
1904, in the meaning defined above
Noun
1906, in the meaning defined above