Word: knotworts
Part of speech: Noun
Syllables: knot
worts
Definition: Plural of knotwort;  which is a trailing annual plant native to Europe, with whorls of small white flowers borne in the axils of the paired leaves
Morphemes:
Affix: knot
Language: en
PoS: Verb
Meaning: To form knots.
Affix: wort
Language: en
PoS: Noun
Meaning: Any of various plants or herbs, used in combination to refer to specific plants such as St. John's wort, or on its own as a generic term.
Etymology Compounds: Affix: wort
Language: enm
Decoded: wort
Meaning: plant
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).