i Register
In some senses, brotherly is marked as dated. Watch for register when choosing this word.
adj
Of or characteristic of brothers.
brotherly love
Do not despair. To be friendless is indeed to be unfortunate, but the hearts of men, when unprejudiced by any obvious self-interest, are full of brotherly love and charity.
adv
In the manner of a brother, as a brother, as brothers.
Praising and pleading him, / Lovingly needing him, / Brotherly feeding him, / Preaching and speeding him, / Blessing, succeeding Him, / Thus is the Master near,— / Thus is He here!
I might have seen him, and talked with him brotherly, face to face.