- (transitive) to make more expensive
- (transitive) to bid; to make a bid (at auction etc.)
- (intransitive) to go up (in price), become more expensive
This is a regular verb of the second conjugation, like finir, choisir, and most other verbs with infinitives ending in -ir. One salient feature of this conjugation is the repeated appearance of the infix -iss-.
Conjugation of enchérir (see also Appendix:French verbs)