другар

Bulgarian

друг (drug, “companion”) +‎ -ар (-ar)

друга́р • (drugár) m (feminine друга́рка, relational adjective друга́рски)

friend, companion, buddy (person with whom one associates often, shares mutual trust and attachment)
Synonym: прия́тел (prijátel)
colleague, associate, partner, comrade (person with whom one shares work, interests, or goals)
бо́ен друга́р
bóen drugár
comrade-in-arms
peer, equal (person in the same social position or collective)
fellow, companion (person linked to someone by circumstance)
друга́ри по съдба́
drugári po sǎdbá
fellow sufferers
traveling companion
Synonym: спъ́тник (spǎ́tnik)
(communism, by extension) comrade (a fellow socialist, communist or other similarly politically aligned person)
Synonyms: съиде́йник (sǎidéjnik), съра́тник (sǎrátnik)
(dated) comrade (official term of address between 1944 and 1989)
Synonym: (modern) господин (gospodin)
(historical) spouse, husband
Synonym: съпру́г (sǎprúg)
mate (male of a pair of animals or birds)

“другар”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Sofia: Bulgarian Academy of Sciences, 2014
“другар”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Chitanka, 2010

дру́гар • (drúgar) m (plural дру́гари, feminine дру́гарка, related adjective дру́гарски, diminutive другарче)

Compared to the synonym пријател, другар typically implies a closer or longer-lasting relationship, such as a friend from childhood.

“другар” in Дигитален речник на македонскиот јазик (Digitalen rečnik na makedonskiot jazik) [Digital dictionary of the Macedonian language] − drmj.eu

From друг +‎ -ар.

дру̀га̄р m anim (Latin spelling drùgār)