Wroth means very angry, in old use. Wroth with him, waxed wroth, sore wroth.
It is archaic and biblical, and it survives only in deliberate old-fashioned style. It is the adjective where wrath is the noun, and the two are pronounced differently — wroth rhymes with cloth. Note that the Old English word meant cruel or twisted, from a root meaning to turn.
1adjectivewrothVery angry.
“The king was wroth when he learned that his own son had betrayed him.”
wroth is a state of anger.
WROTH → full of WRATH
It is wrath turned into a describing word: the old king is wroth, and every servant in the hall has gone quiet.
hooks ontowrath
Old English wrath comes from a Germanic root meaning cruel, from a root meaning to turn. Writhe and wreath are relatives.
Proto-Indo-European
*wreyt- — to turn
Proto-Germanic
*wraiþaz — cruel
Old English
wrāþ
Middle English
wroth
English, today
wroth
From Middle English wroth, from Old English wrāþ, from Proto-Germanic wraiþaz (“cruel”), from Proto-Indo-European wreyt- (“to turn”). Akin to stq wreed (“haughty; proud”), Old Saxon wrēd (“evil”) (Dutch wreed (“cruel”)), Old High German reid (“cruel”), Old Norse reiðr (“angry”) (Danish vred, Swedish vred).
Etymology from Wiktionary, CC BY-SA