chad
意味
- チャド(アフリカ中西部の共和国)
語源
英語の原文（Wiktionary）
Uncertain; possibly from the English slang term chat (“louse”). The word predates the chadless punch, which therefore cannot be its origin, and a derivation from Scots chad (“river gravel”) stated in some dictionaries is now thought to be nothing more than guesswork.