köken: From Middle High German ebene, from Old High German ebanī, from Proto-Germanic *ebnaz, whence also Old English efn (English even), Old Norse jafn. The sense “plane” is a semantic loan from Latin planum, whereas the sense “storey, floor” is one from English level.
köken: From Old Norse sléttr, from Proto-Germanic *slihtaz (“slippery, flat, level, plain”). Cognate with Swedish slät (“smooth”), English slight, Scots slicht (“bad, of poor quality”), West Frisian sljocht (“smooth, level, plain, simple”), Dutch slecht (“bad”), Low German slecht (“bad”), German schlecht (“bad”) and schlicht (“plain, artless, natural”), Danish slet (“bad, evil, poor, nasty, wrong”),…
plain (an expanse of land with relatively low relief)
çekim: çoğul câmpii · tamlayan câmpii
köken: Either from câmp (“field”) + -ie or from Vulgar Latin *campia, from Ancient Greek [Term?]. Compare Sicilian campia and Calabrian (?) campia; less likely from Latin campus + -inea.