increaseyoudaoicibaDictYouDict[increase 词源字典]
increase: [14] The -crease element in increase (which occurs also, of course, in its antonym decrease) means ‘grow’. It comes from Latin crēscere ‘grow’ (source of English crescent), which combined with the prefix in- to produce incrēscere ‘grow in, grow on’. This passed into Old French as encreistre, which English originally took over as encres. The Latin-style spelling, with in- instead of en-, was reintroduced in the 15th century. Derived from Latin incrēscere was incrēmentum ‘growth, increase’, which gave English increment [15].
=> crescent, crew, croissant, decrease, increment[increase etymology, increase origin, 英语词源]
increase (v.)youdaoicibaDictYouDict
early 14c., "become greater in size or number; to cause to grow, enlarge," from Anglo-French encress-, Old French encreiss-, present participle stem of encreistre, from Latin increscere "to increase, to grow upon, grow over, swell, grow into," from in- "in" (see in- (2)) + crescere "to grow" (see crescent). Latin spelling restored 15c. Related: Increased; increasing.
increase (n.)youdaoicibaDictYouDict
late 14c., "action of increasing; results of an increasing," from increase (v.).