sickle: [OE] A sickle is etymologically a ‘cutting’ tool. Like its close relatives German sichel and Dutch zikkel, it originated in a prehistoric Germanic borrowing of Latin secula ‘sickle’. This was a derivative of the verb secāre ‘cut’ (source of English section, sector, etc), which in turn went back to the Indo-European base *sek- ‘cut’ (source also of English scythe). => scythe, section, segment[sickle etymology, sickle origin, 英语词源]