What is the meaning of Missen?

Myself.

Alternative form of mizzen

definite singular of mis

to miss, to go without

to spare, to afford (going without)

to miss someone

plural of mis

plural of miss

to be without, to lack

to miss

to lose

to miss, to not hit

to miss, to lack, to not have

to lose, to no longer have

to fail

definite singular of miss

Source: wiktionary.org