ambulate (v.)youdaoicibaDictYouDict[ambulate 词源字典]
1620s, from Latin ambulatus, past participle of ambulare "to walk" (see amble). Related: Ambulated; ambulating.[ambulate etymology, ambulate origin, 英语词源]
circumambulate (v.)youdaoicibaDictYouDict
1650s, from Latin circumambulatus, past participle of circumambulare "to walk around," from circum "around" (see circum-) + ambulare "to walk" (see amble). Related: Circumambulated; circumambulating; circumambulation.
perambulate (v.)youdaoicibaDictYouDict
1560s, from Latin perambulatus, past participle of perambulare "to walk through, go through, ramble through," from per- "through" (see per) + ambulare "to walk" (see amble). Related: Perambulated; perambulating.
somnambulate (v.)youdaoicibaDictYouDict
1821, probably a back-formation from somnambulism. Related: Somnambulated; somnambulating.