rob
v.
late 12c., from Old French rober "rob, steal, pillage, ransack, rape," from West Germanic *rauba "booty" (cognates: 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 *reup-, *reub- "to snatch" (see rip, v.).
Lord, hou schulde God approve þat þou robbe Petur, and gif þis robbere to Poule in þe name of Crist? [Wyclif, 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.词根：rob = strong, strength
来自拉丁语的rob 意为 strong,strength。同义词根有来自拉丁语的fort/forc,firm,bil等，以及来自拉丁语的意为strong,worth的val。
同源词：
1. corroborate（使非常有力 cor<com(=intensive) + robor(=strength)）
vt.确证
corroboration n.确证
corroborative adj.确证的
corroborant adj.滋补的；确证的；(n.)强壮剂
The bartender corroborated the suspect's alibi for his whereabouts on the night of the murder. 酒吧男招待证实了谋杀发生当嫌疑人不在犯罪现场。
2. robot
n.机器人；机械呆板的人
3. robust
adj.强健的；健全的；结实的
robust young man / appetite 健壮的年轻人/旺盛的食欲