Havest vs Havent - What's the difference?

As a verb havest

is archaic second-person singular of have.

alternative form of haven't|lang=en.

(head)

(have)

* 13th C. , anonymous, “Worldesblis ne last no throwe”, Rawlinson Ms G18

wanne thu list, mon, undur molde / thu shalt hauen astu hauest wrokt.

(When thou liest, man, under the , / thou shalt have as thou havest wrought.)

* hast

(en-cont)

(informal, nonstandard)

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