Word: frightfully
Part of speech: Adverb
Syllables: fright
ful
ly
Definition: Very, extremely.
Morphemes:
Affix: fright
Language: en
PoS: Adjective
Meaning: frightened; afraid; affright
Affix: -ful
Language: en
PoS: Suffix
Meaning: Used to form nouns indicating a great deal of the quantity expressed by the noun.
Affix: -ly
Language: en
PoS: Suffix
Meaning: Used to form adverbs from adjectives.