rubble n.

c. 1400, robous, "waste, broken, or worn-out material," especially "rubble from the demolition of a building, etc.," from Anglo-French rubouses (late 14c.), a word of unknown origin. There are said to be no apparent cognates in Old French; OED says "app. related in some way to rubble."

The spelling with -ish is from late 15c. As "any useless or worthless stuff" by c. 1600. The verb sense of "disparage, criticize harshly" is attested by 1953 in Australian and New Zealand slang. Related: Rubbished; rubbishing.

late 12c., robben, "steal, take away (from someone) unlawfully; plunder or strip (a place) by force or violence," from Old French rober "rob, steal, pillage, ransack, rape," from West Germanic *rauba "booty" (source also of Old High German roubon "to rob," roub "spoil, plunder;" Old English reafian, source of the reave in bereave), from Proto-Germanic *raubon "to rob" (from PIE *runp- "to break;" see corrupt (adj.)).

Lord, hou schulde God approve þat þou robbe Petur, and gif þis robbere to Poule in þe name of Crist? [Wycliffe, c. 1380]

To rob the cradle is attested from 1864 in reference to drafting young men in the American Civil War; by 1949 in reference to seductions or romantic relationships with younger persons. Related: Robbed; robbing.