Webster's Revised Unabridged Dictionary · 1913

Worth

Worth , intransitive verb

[Old English worthen, wurþen, to become, Anglo-Saxon weorean; akin to Old Saxon werean, Dutch worden, German werden, Old High German werdan, Icelandic verea, Swedish varda, Gothic waírpan, Latin vertere to turn, Sanskrit vrt, v. i., to turn, to roll, to become. r143. Compare Verse, -ward, Weird.]

To be; to become; to betide; -- now used only in the phrases, woe worth the day, woe worth the man, etc., in which the verb is in the imperative, and the nouns day, man, etc., are in the dative. Woe be to the day, woe be to the man, etc., are equivalent phrases.
I counsel... to let the cat worthe. — Piers Plowman
He worth upon [got upon] his steed gray. — Chaucer

Worth , adjective

[Old English worth, wurþ, Anglo-Saxon weore, wurE; akin to OFries. werth, Old Saxon were, Dutch waard, Old High German werd, German wert, werth, Icelandic verer, Swedish vard, Danish vard, Gothic waírps, and perhaps to English wary. Compare Stalwart, Ware an article of merchandise, Worship.]

1.
Valuable; of worthy; estimable; also, worth while. [Obsolete]
It was not worth to make it wise. — Chaucer
2.
Equal in value to; furnishing an equivalent for; proper to be exchanged for.
A ring he hath of mine worth forty ducats. — Shakespeare
All our doings without charity are nothing worth. — Bk. of Com. Prayer
If your arguments produce no conviction, they are worth nothing to me. — Beattie
3.
Deserving of; -- in a good or bad sense, but chiefly in a good sense.
To reign is worth ambition, though in hell. — Milton
This is life indeed, life worth preserving. — Addison
4.
Having possessions equal to; having wealth or estate to the value of.
At Geneva are merchants reckoned worth twenty hundred crowns. — Addison
Collocations (1)
Worth while or Worth the while , See under While, n.

Worth , noun

[Old English worth, wurþ, Anglo-Saxon weore, wure; weore, wure, adj. See Worth, a.]

1.
That quality of a thing which renders it valuable or useful; sum of valuable qualities which render anything useful and sought; value; hence, often, value as expressed in a standard, as money; equivalent in exchange; price.
What 's worth in anything But so much money as 't will bring? — Hudibras
2.
Value in respect of moral or personal qualities; excellence; virtue; eminence; desert; merit; usefulness; as, a man or magistrate of great worth.
To be of worth, and worthy estimation. — Shakespeare
As none but she, who in that court did dwell, Could know such worth, or worth describe so well. — Waller
To think how modest worth neglected lies. — Shenstone