Useful english dictionary. 2012.
unpenned — un·penned … English syllables
unpen — /un pen /, v.t., unpenned, unpenning. to release from confinement. [1585 95; UN 2 + PEN2] * * * … Universalium
unpen — /ʌnˈpɛn/ (say un pen) verb (t) (unpenned, unpenning) to release from, or as from, a pen. {un 2 + pen2} …