| 1. | a person, usually a married or older woman, who, for propriety, accompanies a young unmarried woman in public or who attends a party of young unmarried men and women. |
| 2. | any adult present in order to maintain order or propriety at an activity of young people, as at a school dance. |
| 3. | a round headdress of stuffed cloth with wide cloth streamers that fall from the crown or are draped around it, worn in the 15th century. |
| 4. | to attend or accompany as chaperon. |
| 5. | to act as chaperon. |

chap·er·on or chap·er·one (shāp'ə-rōn') n.
To act as chaperon to or for. See Synonyms at accompany. [French, from chaperon, hood, from Old French, diminutive of chape, cape, head covering; see chape.] chap'er·on'age (-rō'nĭj) n. Word History: The chaperon at a high-school dance seems to have little relationship to what was first signified by the English word chaperon, "a hood for a hawk," and not even that much to what the word later meant, "a woman who protects a young single woman." The sense "hood for a hawk," recorded in a Middle English text composed before 1400, reflects the original meaning of the Old French word chaperon, "hood, headgear." In order to understand why our chaperon came to have the sense "protector," we need to know that in French the verb chaperonner, meaning "to cover with a hood," was derived from chaperon and that this verb subsequently developed the figurative sense "to protect." Under the influence of the verb sense the French noun chaperon came to mean "escort," a meaning that was borrowed into English, being found first in a work published in 1720. In its earlier use English chaperon referred to a person, commonly an older woman, who accompanied a young unmarried woman in public to protect her. The English verb chaperon, "to be a chaperon," is first recorded in Jane Austen's Sense and Sensibility, begun in 1796 as a sketch called "Elinor and Marianne" and published as a novel in 1811. |
"Chaperon ... when used metaphorically means that the experienced married woman shelters the youthful débutante as a hood shelters the face" [1864].