Inside the Universes

Words with a similar base: firedamp

[firedamp.n.01] as in: a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air

					firedamp (English)
├── damp (English)
└── fire (English)
    └── fier (Middle English (1100-1500))
        └── fyr (Old English (ca. 450-1100))