Word: feetfirst
Part of speech: Adverb
Syllables: feet
first
Definition: With one's feet going first.
Morphemes:
Affix: feet
Language: en
PoS: Noun
Meaning: Alternative form of foot; the lower part of anything
Affix: fore
Language: en
PoS: Adverb
Meaning: In the part that precedes or goes first; opposed to aft, after, back, behind, etc.
Affix: -est
Language: en
PoS: Suffix
Meaning: Used to form the superlative of adjectives and adverbs.