Underdid vs Underbid - What's the difference?

As verbs the difference between underdid and underbid

is that underdid is (underdo) while underbid is to bid too low.

a bid that is lower than another.

(head)

(underdo)

(obsolete) To put under, subject.

To do something insufficiently; especially to undercook.

To act below one's abilities; do less than one can.

To do less than is requisite.

* *

To bid too low.

To bid lower than another.

(bridge) To bid less than the full value of a hand of cards.

(en noun)

A bid that is lower than another.