CHAPERONE:(also chaperon 'ʃapərɒn) ■ noun dated an older woman responsible for the decorous behaviour of a young unmarried girl at social occasions.
■ verb accompany and look after.
chaperonage 'ʃap(ə)r(ə)ˌnɪdʒ noun
- Eg. Three parents went on the school ski trip as chaperones.