In Japan, we call February Kisaragi that is the name of the second month of lunar calendar. Actually, the second month of lunar calendar is supposed to be about March of solar calendar. So it may be wrong we call this month Kisaragi... Anyway, what does the word "Kisaragi" mean?
There are some different theories, but my favorite one is this:
Ki-sara-gi
Ki - comes from the word "kiru" that means to wear something.
sara - comes from of the word "sarani" that means in addition or again.
gi - in this