oversell

verb4

1. •
   To agree to sell more of something than one can supply.
2. •
   To be too eager in attempting to sell something.
3. •
   To praise something to excess.

   • I don't want to oversell it, but [second clause]
   • I don't want to oversell it, but you've got to check out that new restaurant on Third Street.
4. •
   (no longer used) To sell for a higher price than; to exceed in sale price.

   • One whose beauty / Would oversell all Italy — 1617