Source: THOMAS, Mary (1934). Mary Thomas's Dictionary of Embroidery Stitches, London: Hodder and Stoughton, p. 26.
GVE
A buttenhole eyelet (also known as a buttonhole wheel, buttonhole stitch wheel, or wheel stitch) is a technique worked as a buttonhole stitch, but in circular form rather than in a straight line. Each stitch is worked into the same central hole in order to create one large hole in the centre.
Source: THOMAS, Mary (1934). Mary Thomas's Dictionary of Embroidery Stitches, London: Hodder and Stoughton, p. 26.
GVE