I. ˈtamp transitive verb
Etymology: probably back-formation from obsolete tampion, tampin plug, from Middle English, from Middle French tapon, tampon, of Germanic origin; akin to Old High German zapho tap — more at tap
Date: 1834
1. : to drive in or down by a succession of light or medium blows
tamp wet concrete
2. : to put a check on : reduce , lessen
tamp down rumors
• tamp·er noun
II. noun
Date: 1920
: a tool for tamping