šmn / Semitic roots

1. Gethsemane, from Greek Gethsēmani, from Hebrew gat šemen, oil press, from šemen, oil (gat, press; see wgn).

2. sesame, sesamoid, from Greek sēsamē, sēsamon, sesame, from a Semitic source akin to Ugaritic ššmn, Phoenician ššmn, Aramaic šumšəmā, Arabic simsim, all meaning "sesame" and all probably from Akkadian šamaššammū, sesame, back-fromation from *šaman šammī, oil of plants, from šaman, bound form of šamnu, oil (šammī, genitive plural of šammu, plant; see śmm). It is possible that the Akkadian form represents a folk etymology for an original form šamšamu, from a root *šmšm).