Go raibh maith agat, a dheartháir gan aird.
(or a dheartháir gan mhaith).
Dearthair
You can say "Mahalo e ku'u kaikua'ana" in Hawaiian, which means "Thank you, my brother".
The translation of "Thank you brother" into Afrikaans is "Dankie my broer"
Naomi describes her brother as "أخي" (akhī) in Arabic, which means "my brother". To say thank you in Arabic, she would say "شكرًا" (shukran).
Go raibh maith agat.
In Greek, you can say "Ευχαριστώ, αδελφέ" (Efcharistó, adelfé) to express "thank you, brother." "Ευχαριστώ" means "thank you," and "αδελφέ" is the vocative form of "brother." This phrase conveys gratitude in a friendly and familial manner.
leas-dheartháir
Tá deartháir amháin agam.
Irish: Deartháir beag
as gaeilge (in Irish) "Go raibh maith agat"
Go raibh maith agat, a ghrá.
Go raibh maith agat (to one person only).