Footing
来自Big Physics
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Old English fōt, of Germanic origin; related to Dutch voet and German Fuss, from an Indo-European root shared by Sanskrit pad, pāda, Greek pous, pod-, and Latin pes, ped- ‘foot’.
wiktionary
From Middle English fotyng; equivalent to foot + -ing.
etymonline
footing (n.)
late 13c., "a base, foundation;" late 14c., "position of the feet on the ground, stance," a gerundive formation from foot (n.). Figurative meaning "firm or secure position" is from 1580s; that of "condition on which anything is established" is from 1650s.
