Etimoloji
Etymology tree Esperanto kredo Latin -ariumder. Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Gothic -𐌰𐍂𐌴𐌹𐍃 (-areis)bor. Proto-Slavic *-ařь Russian -арь (-arʹ)der. Esperanto -aro Esperanto kredaro From kredo + -aro.