caul (n.)youdaoicibaDictYouDict[caul 词源字典]
early 14c., "close-fitting cap worn by women," from French cale "cap," back-formation from calotte, from Italian callotta, from Latin calautica "type of female headdress with pendent lappets," a foreign word of unknown origin. Medical use, in reference to various membranes, dates to late 14c. Especially of the amnion enclosing the fetus before birth from 1540s. This, if the child is born draped in it, was supersititously supposed to protect against drowning (cauls were advertised for sale in British newspapers through World War I).[caul etymology, caul origin, 英语词源]
drape (v.)youdaoicibaDictYouDict
c. 1400, "to ornament with cloth hangings;" mid-15c., "to weave into cloth," from Old French draper "to weave, make cloth" (13c.), from drap "cloth, piece of cloth, sheet, bandage," from Late Latin drapus, perhaps of Gaulish origin (compare Old Irish drapih "mantle, garment"). Meaning "to cover with drapery" is from 1847. Meaning "to cause to hang or stretch out loosely or carelessly" is from 1943. Related: Draped; draping.
drapery (n.)youdaoicibaDictYouDict
early 14c., "cloth, textiles," from Old French draperie (12c.) "weaving, cloth-making, clothes shop," from drap (see drape (n.)). From late 14c. as "place where cloth is made; cloth market." Meaning "stuff with which something is draped" is 1680s.
stalk (v.1)youdaoicibaDictYouDict
"pursue stealthily," Old English -stealcian, as in bestealcian "to steal along, walk warily," from Proto-Germanic *stalkon, frequentative of PIE *stel-, possibly a variant of *ster- (3) "to rob, steal" (see steal (v.)). Compare hark/hear, talk/tell). In another view the Old English word might be from a sense of stalk (v.1), influenced by stalk (n.). Meaning "harass obsessively" first recorded 1991. Related: Stalked; stalking.

A stalking-horse in literal use was a horse draped in trappings and trained to allow a fowler to conceal himself behind it to get within range of the game; figurative sense of "person who participates in a proceeding to disguise its real purpose" is recorded from 1610s.