Word: failest
Part of speech: Verb
Syllables: fai
lest
Definition: Alternative form of fail; fail to do something; leave something undone
Morphemes:
Affix: fail
Language: en
PoS: Noun
Meaning: A failure (something incapable of success)
Etymology Compounds: Affix: fallere
Language: la
Decoded: fallere
Meaning: to deceive, disappoint
Affix: -est
Language: en
PoS: Suffix
Meaning: Used to form the second-person singular present tense and past tense of verbs. (if thou is the subject; not used with you)