Word: heightenest
Part of speech: Verb
Syllables: heigh
te
nest
Definition: Alternative form of heighten; make (one's senses) more acute
Morphemes:
Affix: high
Language: en
PoS: Verb
Meaning: To rise.
Affix: -th
Language: en
PoS: Suffix
Meaning: Used to form nouns from adjectives.
Affix: -en
Language: en
Meaning: inchoative
Affix: -est
Language: en
PoS: Suffix
Meaning: Used to form the superlative of adjectives and adverbs.