doest

Verb

 * , Genesis 4:7
 * If thou doest well, shalt thou not be accepted? and if thou doest not well, sin lieth at the door. And unto thee shall be his desire, and thou shalt rule over him.
 * If thou doest well, shalt thou not be accepted? and if thou doest not well, sin lieth at the door. And unto thee shall be his desire, and thou shalt rule over him.

Usage notes
Doth and dost are generally used as auxiliary verbs; doeth and doest are generally used as main verbs.