Stepping

来自Big Physics

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Old English stæpe, stepe (noun), stæppan, steppan (verb), of Germanic origin; related to Dutch steppen and German stapfen .


文件:Ety img stepping.png

wiktionary

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From Middle English steppyng; equivalent to step +‎ -ing.


etymonline

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stepping (n.)

early 14c., verbal noun from step (v.). Stepping stone first recorded early 14c.; in the figurative sense 1650s.