Where does “elektrikaŕ” come from?

elektrikaŕ (Lower Sorbian) comes from Lower Sorbian -aŕ, 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).

elektrikaŕ (Lower Sorbian): electrician

Definitions

electrician

Ancestry of “elektrikaŕ”, step by step

Step	Language	Word	Meaning
1	Lower Sorbian	-aŕ	-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 →