köken: From Late Latin planētārius (“astrologer, relating to the planets”), from Latin planēta (“planet, wandering star”). By surface analysis, planeta + -ário.
Etymology tree Ancient Greek πλανάω (planáō) Proto-Indo-European *-tósder. Ancient Greek -της (-tēs) Ancient Greek πλανήτης (planḗtēs)bor. Latin planētalbor. Polish planeta Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusbor. Proto-Indo-European *-nós Proto-Balto-Slavic *-inas Proto-Slavic *-ьnъ Old Polish -ny Polish -ny Polish -arny Polish planetarny From planeta + -arny.