I. ˈnän(t)s noun
Etymology: Middle English nanes, alteration (from misdivision of then anes in such phrases as to then anes for the one purpose) of anes one purpose, irregular from an, on one — more at one
Date: 13th century
1. : the one, particular, or present occasion, purpose, or use
for the nonce
2. : the time being
II. adjective
Date: 1884
: occurring, used, or made only once or for a special occasion
a nonce word