köken: Etymology tree English abyssalbor. Polish abisal Proto-Indo-European *-nós Proto-Balto-Slavic *-inas Proto-Slavic *-ьnъ Old Polish -ny Polish -ny Polish abisalny From abisal + -ny. First attested in 1922.
abyssal (of or belonging to the ocean depths, especially below 2000 metres) · abyssal, plutonic (pertaining to or occurring at excessive depths in the earth's crust)
köken: Borrowed from Latin abyssicus (“abyssal”), from abyssus (“abyss”). With Latinate -ikus ending.