To stroke, rub, press. European root.
Derivatives include streak, prestige, and restrict.
I. Basic form *streig-.
a. strike, from Old English strīcan, to stroke;
b. tricot, from Old French estriquier, to strike. Both a and b from Germanic *strīkan.
2. strickle, from Old English stricel, implement for leveling grain, from Germanic diminutive *strik-ila-.
3. streak, from Old English strica, stroke, line, from Germanic *strikōn-.
II. O-grade form *stroig-. stroke1, from Old English *strāc, stroke, from Germanic *straik-.
III. Zero-grade form *strig-.
1. Suffixed form *strig-ā-. strigose, from Latin striga, row of grain, furrow drawn lengthwise over the field.
2. Suffixed form *strig-yā-. stria, from Latin stria, furrow, channel.
3. Nasalized zero-grade form *stri-n-g-. strain1, strait, stress, stretto, strict, stringendo, stringent; astringent, constrain, distrain, distress, prestige, restrain, restrict, from Latin stringere, to draw tight, press together.
4. strigil, from Latin strigilis, strigil, possibly akin to stringere.
[Pokorny 1. streig-, 2. streig- 1036, 4. ster- 1028.]

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Universalium. 2010.