The Collaborative International Dictionary
Nost
Nost \Nost\ [Contr. from ne wost.]
Wottest not; knowest not. [Obs.]
--Chaucer.
Wiktionary
nost
adv. away contraction (context obsolete English) (form of Contraction ne wost English); wottest not; knowest not.
Usage examples of "nost".
And there are children who should be sent to safety, maybe to Cawley’s farm on Nost Creek.