incombustible (English)
├── -ible (English)
├── combust (English)
│ └── combūstus (Latin)
└── in- (English)
├── in (Latin)
├── in- (Latin)
└── in- (Middle English (1100-1500))
└── in- (Old English (ca. 450-1100))
└── in (Old English (ca. 450-1100))
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