Buddy is a masculine term for a close companion who can be counted on in a crisis, or in other times of need.
In wartime males become buddies during combat or while watching each other’s back in a foxhole.
The word originated with seventeenth-century Welsh and English coalminers.
They referred to a workmate with whom they shared the responsibilities of survival as a “butty”, which became buddy in North America.
A bromance is often a more intimate relationship with a buddy.