from Edward Bunting, The Ancient Music of Ireland (Dublin 1840), page 20: The different kinds of Irish harps.
Irish cruit an chinn aird
spoken by Gráinne Yeats
Scottish Gaelic ceann-àrd chruit spoken by Tony Dilworth
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Two examples of ‘high-headed harps’ from the 18th century. The ‘head’ is the part at the top right on each of these two illustrations.
The O'Neill harp
Cinnard Cruit (p.31: Cinnard chruit) - The high-headed harp
This is not a genuine Gaelic term, but has been crudely formed to match the English term. It doubtless represents a genuine form like cruit an chinn aird, 'the harp of the high head'. Cruit (a feminine noun) appears to be the oldest term for a harp (occurring as crott in the Old Irish period, c.600-c.900), and is apparently applied also to other stringed instruments.
Colm Ó Baoill 2002