† makinboyn.

1652 S. Hartlib Legacie (ed. 2) App. sig. S3^v/1 Maccamboy. Whether there be such a thing at all, that this herb should purge the body meerly by external touch, or whether it be a fable, [etc.]?

1670 J. Ray Catalogus Plantarum Angliæ 299 Tithymalus Hibernicus, Makinboy.

1678 E. Phillips New World of Words (new ed.) Mackenboy, or Makimboy, a kind of Spurge with a knotty Root, growing naturally in Ireland, which being but carried about one, causeth the party to go often to stool.

a1687 W. Petty Polit. Anat. Ireland (1691) 111 What is said of the Herb Mackenbory is fabulous.

1700 W. King Transactioneer ii. 39 Irish Mackenboy Root may be carryed in the Pocket three days without purging.

1816–20 T. Green Universal Herbal I. 543 Euphorbia Hibernica, Irish Spurge... Native of Ireland..where it is known by the name of makinboy.

1873 Jrnl. Bot., Brit. & Foreign 11 339 In Galway it is known as ‘makkin-bwee’: ‘makkin’ originally meant root, but is colloquially applied to the parsnip; ‘bwee’ means yellow—‘makkin-bwee’ in English is therefore ‘yellow parsnip’.