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cube [cube 词源字典]: cube: [16] Greek kúbos meant literally ‘six-sided solid figure’, a sense handed down to English via Latin cubus. Apart from more obvious metaphorical applications, such as ‘dice’, the Greek word was used for the internal cavity of the pelvis, a semantic feature which links it with its possible relative, English hip. The fine-art term cubism was introduced to English in 1911 from French, where it seems to have been coined in 1908 by an anonymous member of the Hanging Committee of the Salon des Independents. The story goes that when a painting by Georges Braque was being shown to the committee, he exclaimed ‘Encore des Cubes! Assez de cubisme!’.
[cube etymology, cube origin, 英语词源]
hide (n.2): "measure of land" (obsolete), Old English hid "hide of land," earlier higid, from hiw- "family" (related to hiwan "household," hiwo "a husband, master of a household"), from Proto-Germanic *hiwido-, from PIE *keiwo- (source also of Latin civis "citizen"), from root *kei- "to lie; bed, couch; beloved, dear" (see cemetery, and compare city).

The notion was of "amount of land needed to feed one free family and dependents," usually 100 or 120 acres, but the amount could be as little as 60, depending on the quality of the land. Often also defined as "as much land as could be tilled by one plow in a year." Translated in Latin as familia.
sectarian (adj.): 1640s, originally applied by Presbyterians to Independents, from Medieval Latin sectarius, from secta (see sect).