motivational

Etymology tree
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
Proto-Indo-European *-tis
Proto-Indo-European *-Hō
Proto-Indo-European *-tiHō
Proto-Italic *-tiō
Latin -tiō
Latin -ātiōlbor.
Old French -ationbor.
Middle English -acioun
English -ation
English motivation
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālisbor.
Old French -albor.
▲
Latin -ālis
Old French -elbor.
▲
Latin -ālisbor.
Middle English -al
English -al
English motivational
From motivation + -al.