Etymology: Middle English rokken, from Old English roccian; akin to Old High German rucken to cause to move
Date: 12th century
1. to move back and forth in or as if in a cradle
a. to cause to sway back and forth <a boat rocked by the waves> b. (1) to cause to shake violently (2) to daze with or as if with a vigorous blow <a hard right rocked the contender> (3) to astonish or disturb greatly <the scandal rocked the community> 3. to rouse to excitement (as by performing rock music) <rocked the crowd> intransitive verb 1. to become moved backward and forward under often violent impact; also to move gently back and forth 2. to move forward at a steady pace; also to move forward at a high speed <the train rocked through the countryside> 3. to sing, dance to, or play rock music 4. slang to be extremely enjoyable, pleasing, or effective <her new car rocks> Synonyms: see shake II. noun Usage: often attributive Date: 1823 1. a rocking movement 2. popular music usually played on electronically amplified instruments and characterized by a persistent heavily accented beat, repetition of simple phrases, and often country, folk, and blues elements III. noun Etymology: Middle English roc, from Middle Dutch rocke; akin to Old High German rocko distaff Date: 14th century 1. distaff 2. the wool or flax on a distaff IV. noun Etymology: Middle English rokke, from Old French dialect (Norman & Picard) roke, from Vulgar Latin *rocca Date: 14th century 1. a large mass of stone forming a cliff, promontory, or peak 2. a concreted mass of stony material; also broken pieces of such masses 3. consolidated or unconsolidated solid mineral matter; also a particular mass of it 4. a. something like a rock in firmness: (1) foundation, support (2) refuge <a rock of independent thought…in an ocean of parochialism — Thomas Molnar> b. something that threatens or causes disaster — often used in plural 5. a. a flavored stick candy with color running through b. rock candy 1 6. slang a. gem b. diamond 7. a. a small crystallized mass of crack cocaine b. crack 9 8. the ball used in basketball • rock adjective • rocklike adjective
New Collegiate Dictionary. 2001.