speedometer (English)
├── -meter (English)
│ └── μέτρον (Ancient Greek (to 1453))
└── speed (English)
├── spede (Middle English (1100-1500))
│ └── sped (Old English (ca. 450-1100))
└── speden (Middle English (1100-1500))
└── spedan (Old English (ca. 450-1100))
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