English
fraternally
From fraternal + -ly.
A compound of fraternal + -ly
Proto-Indo-European *bʰréh₂tēr ‘brother’
…
Latin frāter ‘brother’
Latin frāternus ‘of or pertaining to a brother, fraternal’
Medieval Latin frāternālis
Middle French fraternel
English fraternal
Today it means
adv In a fraternal manner.
Language periods are conventional ranges, not dates for this word.
Etymograph / fraternally