collarbone (English)
├── bone (English)
│ └── bon (Middle English (1100-1500))
│ └── ban (Old English (ca. 450-1100))
└── collar (English)
└── coler (Middle English (1100-1500))
└── coler (Old French (842-ca. 1400))
└── collare (Latin)
├── collaris (Latin)
└── collum (Latin)
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