wort vs herb

wort and herb both are nouns.

Word	Noun	Adjective	Verb	Adverb
wort	Yes	No	No	No
herb	Yes	No	No	No

As nouns, herb is a hypernym of wort; that is, herb is a word with a broader meaning than wort:

wort: usually used in combination: `liverwort', `milkwort', `whorlywort'
herb: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

Other hypernyms of wort include herbaceous plant.

wort (noun)	herb (noun)
unfermented or fermenting malt	aromatic potherb used in cookery for its savory qualities
usually used in combination: `liverwort', `milkwort', `whorlywort'	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests