What is the meaning of Then?

At that time.

Soon afterward.

Next in order of place.

In addition; also; besides.

In that case.

At the same time; on the other hand.

Used to contradict an assertion.

Being so at that time.

That time

Obsolete spelling of than

Misspelling of than.

Obsolete spelling of den

bar, peg (used for locking a door)

latch

maggot

Source: wiktionary.org