underquote

[ uhn-der-kwoht ]
/ ˌʌn dərˈkwoʊt /

verb (used with object), un·der·quot·ed, un·der·quot·ing.

to offer (stocks, merchandise, etc.) at a price lower than the market price or some other quoted price; offer at a price reduced by (a specified amount).
to quote a price lower than that of (a specified competitor).

Origin of underquote

First recorded in 1890–95; under- + quote

British Dictionary definitions for under-quote

underquote
/ (ˌʌndəˈkwəʊt) /

verb

to offer for sale (securities, goods, or services) at a price lower than the market price
(tr) to quote a price lower than that quoted by (another)