copromoter

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
Latin prōmōtusbor.
English promote
Proto-Indo-European *-yósder.
Proto-Italic *-āzijos
Latin -āriusnom.
Latin -āriusbor.
Proto-Germanic *-ārijaz
Proto-West Germanic *-ārī
Old English -ere
Middle English -ere
English -er
English promoter
English copromoter
From co- + promoter.