This place name is more properly an Aramaized version of an original Hebrew place name. Gath גת is a normal word for press in Hebrew, generally used for a wine press not an olive press though; and shemanei שמני is the Hebrew word shemanim שמנים meaning "oils", the plural form of the word shemen שמן, the primary Hebrew word for oil, just in an Aramaic plural form (-ei instead of the Hebrew plural suffix -im). The word in Aramaic for "oil" is more properly mišḥa (משחא), as also attested in Jewish writings in Aramaic from the Galilee (see Caspar Levias, A Grammar of Galilean Aramaic, Jewish Theological Seminary of America, 1986).