wont
Multiple Entries:wont won't
Concise Oxford English Dictionary © 2008 Oxford University Press:
wont /wəʊnt/
▶adjective archaic or literary accustomed: he was wont to arise at 5.30. ▶noun (one's wont) formal or humorous one's customary behaviour. ▶verb (3rd sing. present wonts or wont; past and past part. wont or wonted) archaic make or become accustomed.
– origin OE gewunod, past part. of wunian ‘dwell, be accustomed’, of Gmc origin.
Concise Oxford English Dictionary © 2008 Oxford University Press:
won't/wəʊnt/
▶contraction will not.
'wont' also found in these Oxford entries:

