-st
1
1.
variant of
-est
1
:
first; least.
-st
2
1.
variant of
-est
2
:
hadst; wouldst; dost.
British Dictionary definitions for
-st
-est
2
suffix
1.
forming the archaic second person singular present and past indicative tense of verbs:
thou goest,
thou hadst
Word Origin
Old English
-est, -ast
-st
suffix
1.
a variant of
-est
2