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Insuetude
Insuetude In"sue*tude, n. [L. insuetudo, from insuetus
unaccustomed; pref. in- not + suetus, p. p. of suescere to be
accustomed.]
The state or quality of being unaccustomed; absence of use or
habit.
Absurdities are great or small in proportion to custom
or insuetude. --Landor.
Meaning of Insuetude from wikipedia