0 in the past, the second person singular form of the past tense of "have":
thou hadst (= you had)
Oh that thou hadst known the things that belong unto peace.
And if thou hast received, why dost thou glory, as if thou hadst not received it?
Thou hadst better go and question him.
NOVÉ SLOVÁ
European
May 10, 2021
SLOVO DŇA
Shimmer
hadst