Where does “вратар” come from?

вратар (Bulgarian) comes from Bulgarian -а́р, from Proto-Slavic -ařь, from Gothic -𐌰𐍂𐌴𐌹𐍃, from Proto-Germanic -ārijaz, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

вратар (Bulgarian): doorman, door-keeper

Definitions

doorman, door-keeper

Ancestry of “вратар”, step by step

Step	Language	Word	Meaning
1	Bulgarian	-а́р	er, -or
2	Proto-Slavic	-ařь	-er
3	Gothic	-𐌰𐍂𐌴𐌹𐍃	-er
4	Proto-Germanic	-ārijaz	-er
5	Latin	-ārius	er
6	Proto-Italic	*-āzios	Forms relational adjectives to nouns (and rarely numerals)

Every word from Proto-Italic *-āzios →Every word from Latin -ārius →Every word from Proto-Germanic -ārijaz →