çoal
çoal is a Portuguese term used in some regions and historical texts to refer to charcoal, the carbon-rich material produced by charcoal burning. In contemporary standard Portuguese, the more common term for this substance is carvão vegetal (or carvão). As a result, çoal is often encountered in older dictionaries, literary works, regional speech, or in discussions of traditional practices.
Production and properties: Charcoal is made by heating wood in a low-oxygen environment, such as in kilns
Uses: Historically and traditionally, charcoal served as a primary fuel for heating and cooking and as a
Etymology and range of usage: The word çoal appears mainly in older Portuguese texts and regional dialects.