unmotived

Etymology tree
Proto-Indo-European *né
Proto-Indo-European *n̥-
Proto-Germanic *un-
Proto-West Germanic *un-
Old English un-
Middle English un-
English un-
Anglo-Norman motifder.
Middle French motifder.
Proto-Indo-European *m(y)ewh₁-der.
Proto-Italic *moweō
Late Latin moveō
Late Latin mōtus
Proto-Indo-European *-wós
Proto-Indo-European *-iHwósder.
Late Latin -īvus
Late Latin mōtīvumder.
Middle English motif
English motive
English -ed
English unmotived
From un- + motive + -ed.