rearfootn.
/ˈrɪəfʊt/, U.S. /ˈrɪ(ə)rˌfʊt/ 1. The back part of the foot; the heel.
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the world > life > the body > external parts of body > limb > extremities > foot > [noun] > heel of
heeleOE
heel spureOE
hoc1000
lark-heel1865
rearfoot1935
1935 Charleston (W. Va.) Gaz. 22 Feb. 10/2 If walking tires you unduly the reason may be incorrect posture or some rear–foot weakness.
1984 Marathon & Distance Runner Oct. 66/3 It is important to wear shoes which have a firm heel counter to hold the rearfoot steady.
2001 Independent 12 July ii. 8/4 When you wear heels, your foot is at an angle it shouldn't be. The rear foot is propped up unnaturally.
2. The part of a shoe (esp. a sports shoe) which supports the rear of the foot.
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1983 Footwear News 28 Feb. 52 The heel has a fiberglass dynamic reaction plate, and modeled shells for forefoot and rearfoot sections in rubber.
1989 Daily Herald (Chicago) 14 Sept. a8 (advt.) Features Reebok's visible ERS system in rearfoot.
2003 Akron (Ohio) Beacon Jrnl. (Nexis) 9 Oct. e1 Etonics has stable air cushioning in the forefoot and rearfoot.
Compounds
rearfoot striker n. chiefly Athletics a person whose stride (esp. when running) is characterized by the heel striking the ground first; cf. forefoot striker n. at fore-foot n. Additions.
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1980 P. R. Cavanagh Running Shoe Bk. iv. 91/2 The group of twelve runners..all make first contact with the ground with the rear lateral border, and are therefore classified as rearfoot strikers.
2004 Biomechanics (Nexis) 1 Feb. 11 Carrie L. Stackhouse..studied 15 patients, all natural rearfoot strikers, who completed five running trials under four conditions: using either a forefoot strike pattern or a rearfoot strike pattern.
This is a new entry (OED Third Edition, June 2009; most recently modified version published online March 2022).
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n.1935