Webster's Revised Unabridged Dictionary · 1913

Dew

Dew (dū) , noun

[Anglo-Saxon deáw; akin to Dutch dauw, German thau, tau, Icelandic dogg, Swedish dagg, Danish dug; compare Sanskrit dhav, dhāv, to flow. r72. Compare Dag dew.]

1.
Moisture from the atmosphere condensed by cool bodies upon their surfaces, particularly at night.
Her tears fell with the dews at even. — Tennyson
2.
Figuratively, anything which falls lightly and in a refreshing manner.
The golden dew of sleep. — Shakespeare
3.
An emblem of morning, or fresh vigor.
The dew of his youth. — Longfellow

Dew is used in combination; as, dew-bespangled, dew-drenched, dewdrop, etc.

Dew , transitive verb

To wet with dew or as with dew; to bedew; to moisten; as with dew.
The grasses grew A little ranker since they dewed them so. — A. B. Saxton

Dew , adjective and noun

Same as Due, or Duty. [Obsolete] — Spenser