Lesser
来自Big Physics
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Middle English: a double comparative, from less + -er2.
wiktionary
less + -er
etymonline
lesser (adj.)
early 13c., a double comparative, from less (adj.) + -er (2). Johnson calls it "a barbarous corruption of less, formed by the vulgar from the habit of terminating comparatives in -er." As an adverb from 1590s; now generally poetic or obsolete except in expressions such as lesser-known (1813) and lesser of two evils.
