Undervalue

Part of speech: noun (n.)

A low rate or price; a price less than the real worth; undervaluation. Milton.

Part of speech: verb (v.)

1. To value, rate, or estimate below the real worth; to depreciate.

2. To esteem lightly; to treat as of little worth; to hold in mean estimation; to despise. In comparison of it I undervalued all ensigns of authority. Atterbury. I write not this with the least intention to undervalue the other parts of poetry. Dryden.