copromotional

Etymology tree
Proto-Indo-European *ḱe?
Proto-Indo-European *ḱóm
Proto-Italic *kom
Proto-Italic *kom-
Latin con-
Latin co-der.
English co-
Proto-Indo-European *per-der.?
Proto-Indo-European *per-der.?
Proto-Indo-European *pér
Proto-Indo-European *-o
Proto-Indo-European *pró
Proto-Indo-European *pro-
Proto-Italic *pro-
Latin prō-
Proto-Indo-European *m(y)ewh₁-der.
Proto-Italic *moweō
Latin moveō
Latin prōmoveō
Proto-Indo-European *-tis
Proto-Indo-European *-Hō
Proto-Indo-European *-tiHō
Proto-Italic *-tiō
Latin -tiō
Late Latin prōmotiōder.
Old French promocionbor.
Middle English
English promotion
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 promotional
English copromotional
From co- + promotional.