hat: [OE] Hat and hood are ultimately the same word, and denote literally ‘head-covering’. Both go back to Indo-European *kadh- ‘cover, protect’, which in the case of hat produced a Germanic derivative *khadnús, later *khattus. This was the source of English hat, and also of Swedish hatt and Danish hat (German hutt and Dutch hoed ‘hat’ are more closely related to English hood). => hood
hat (n.)
Old English h?t "hat, head covering" (variously glossing Latin pileus, galerus, mitra, tiara), from Proto-Germanic *hattuz "hood, cowl" (cognates: Frisian hat, Old Norse hattr, h?ttr "a hood or cowl"), from PIE root *kadh- "cover, protect" (cognates: Lithuanian kudas "tuft or crest of a bird," Latin cassis "helmet"). To throw one's hat in the ring was originally (1847) to take up a challenge in prize-fighting. To eat one's hat (1770), expressing what one will do if something he considers a sure thing turns out not to be, is said to have been originally eat Old Rowley's [Charles II's] hat.
例文
1. Stan Dean，easily identifiable by his oddly-shaped hat ，sat in a doorway.
スタン?ディーンは入り口に座っていて、彼の奇妙な帽子は急に彼を認識させた。
2.This design knocks everything else into a cocked hat .
このデザインは他の作品に見劣りします。
3.She wore a little nurse 's hat on head to identify her.
彼女は小さなナースキャップをかぶっていて、識別しやすい。
4.Fuentes tore off his hat and flung it to the ground.
フエンテスは帽子を引っ張って地面に投げた。
5.Issa 's white beach hat gleamed in the harsh lights.