UNDERSELL
undersell, undercut
(verb) sell cheaper than one’s competition
Source: WordNet® 3.1
Etymology
Verb
undersell (third-person singular simple present undersells, present participle underselling, simple past and past participle undersold)
To sell goods for a lower price than a competitor.
Synonym: undercut
To sell something for less than its value.
To put forward an idea, or to market a new product, with insufficient enthusiasm.
Source: Wiktionary
Un`der*sell", v. t.
Definition: To sell the same articles at a lower price than; to sell
cheaper than.
Source: Webster’s Unabridged Dictionary 1913 Edition