brotherly · adjective1
- Proto-Germanic · inherited from*brōþērlīkaz
- Proto-West Germanic · inherited from*brōþerlīk
- Old English · inherited frombrōþorlīċ
- Middle English · inherited frombrotherly
- English todaybrotherly
From Middle English brotherly, from Old English brōþorlīċ, from Proto-West Germanic *brōþerlīk, from Proto-Germanic *brōþērlīkaz, equivalent to brother + -ly (adjectival suffix). Cognate with Dutch broederlijk (“brotherly”), German brüderlich (“brotherly”), Swedish broderlig (“brotherly”). Piecewise doublet of friarly.
brotherly · adverb2
- Middle English · inherited frombrotherly
- English todaybrotherly
From Middle English brotherly, equivalent to brother + -ly (adverbial suffix).
Etymology from Wiktionary, CC BY-SA 4.0.