köken: Borrowed from French cidre, from Old French sidre, cisdre, from Latin sicera, from Ancient Greek σίκερα (síkera), from Hebrew שֵׁכָר (šēḵār, “alcoholic drink”) or a related Semitic source (but apparently chiefly Biblical Greek).
köken: Attested since the 14th century (from the 13th century in Latin documents). Borrowed from Old French sidre, from Latin sīcera, from Ancient Greek σῑ́κερᾰ (sī́keră).