hairspring

Words with a similar base: hairspring

'hairspring'

[hairspring.n.01] as in: a fine spiral spring that regulates the movement of the balance wheel in a timepiece

Origins

					hairspring (English)
├── hair (English)
│   └── her (Middle English (1100-1500))
└── spring (English)
    └── springen (Middle English (1100-1500))
        └── springan (Old English (ca. 450-1100))

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