nag's-headn.

Brit.

/ˈnaɡzhɛd/, U.S.

/ˈnæɡzˌ(h)ɛd/

Forms: 1800s nagshead, 1800s– nag's-head.

Origin: Probably formed within English, by compounding. Etymons: nag n.¹, head n.¹

Etymology: Probably < the genitive of nag n.¹ + head n.¹, perhaps on account of the movement of the shutter being likened to that of a horse's head.

Music. Now chiefly historical.

An early swell mechanism for organ, harmonium, harpsichord, etc., consisting of a hinged shutter operated by a pedal or lever.

ΚΠ

1855 E. J. Hopkins Organ xv. §283 The nag's-head swell continued in use for upwards of half a century.

1881 Grove's Dict. Music III. 489/1 The original organ swell was the ‘nagshead’, a mere shutter, invented by Abraham Jordan in 1712.

1938 Oxf. Compan. Music 664/1 For some years after the introduction of the swell it was of the clumsy type called ‘Nag's Head’ (a shutter rising and falling).

1989 E. M. Ripin et al. Early Keyboard Instruments App. 244 In the earlier version, a ‘lid swell’, or ‘nag's head swell’, a pedal was depressed to raise gradually a hinged section at the right-hand side of the harpsichord's lid.

This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).

单词	nags-head
释义	nag's-headn. Brit. /ˈnaɡzhɛd/, U.S. /ˈnæɡzˌ(h)ɛd/ Forms: 1800s nagshead, 1800s– nag's-head. Origin: Probably formed within English, by compounding. Etymons: nag n.¹, head n.¹ Etymology: Probably < the genitive of nag n.¹ + head n.¹, perhaps on account of the movement of the shutter being likened to that of a horse's head. Music. Now chiefly historical. An early swell mechanism for organ, harmonium, harpsichord, etc., consisting of a hinged shutter operated by a pedal or lever. ΚΠ 1855 E. J. Hopkins Organ xv. §283 The nag's-head swell continued in use for upwards of half a century. 1881 Grove's Dict. Music III. 489/1 The original organ swell was the ‘nagshead’, a mere shutter, invented by Abraham Jordan in 1712. 1938 Oxf. Compan. Music 664/1 For some years after the introduction of the swell it was of the clumsy type called ‘Nag's Head’ (a shutter rising and falling). 1989 E. M. Ripin et al. Early Keyboard Instruments App. 244 In the earlier version, a ‘lid swell’, or ‘nag's head swell’, a pedal was depressed to raise gradually a hinged section at the right-hand side of the harpsichord's lid. This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022). < n.1855
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