bromantically

Etymology tree
Proto-Indo-European *bʰréh₂tēr
Proto-Germanic *brōþēr
Proto-West Germanic *brōþer
Old English brōþor
Middle English brother
English brotherclip.
English bro
Latin Rōma
Proto-Indo-European *-nós
Proto-Italic *-nos
Latin -nus
Latin -ānus
Latin Rōmānus
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icus
Latin rōmānicus
Latin -ē
Vulgar Latin rōmānicē
Old French romanz
Old French romauntder.
English romant
▲
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English romantic
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālisbor.
Old French -albor.
▲
Latin -ālis
Old French -elbor.
▲
Latin -ālisbor.
Middle English -al
Proto-Indo-European *leyg-der.
Proto-Germanic *līkąder.
Proto-Germanic *-līkaz
Proto-Germanic *-ê
Proto-Germanic *-līkê
Proto-West Germanic *-līkē
Old English -līċe
Middle English -ly
Middle English -ally
English -ally
English romantically
blend
English bromantically
Blend of bro + romantically.