PEAT, noun A substance resembling turf, used as fuel. It is found in low grounds or moorish lands, and is of several species; one is of a brown or yellowish brown color, and when first cut has a viscid consistence, but hardens when exposed to the air; another consists chiefly of vegetable substances, as branches of trees, roots, grass, etc. PEAT. [See Pet.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI