stroke (n.) Look up stroke at Dictionary.com
"act of striking," c.1300, probably from O.E. *strac, from P.Gmc. *straikaz (cf. M.L.G. strek, Ger. streich, Goth. striks "stroke"), related to the verb stracian (see stroke (v.)). The meaning "mark of a pen" is from 1567; that of "a striking of a clock" is from 1436. Sense of "feat, achievement" (e.g. stroke of luck, 1853) first found 1672; the meaning "single pull of an oar or single movement of machinery" is from 1731. Meaning "apoplectic seizure" is from 1599 (originally the Stroke of God's Hand). Swimming sense is from 1800.
stroke (v.) Look up stroke at Dictionary.com
"pass the hand gently over," O.E. stracian, related to strican "pass over lightly," from P.Gmc. *straikojanan, which is related to the root of strike, from PIE base *streig- (see strigil). Fig. sense of "soothe, flatter" is recorded from 1513. The noun meaning "a stroking movement of the hand" is recorded from 1631.