Obs. In 5 yerdhoue. [f. YARD sb.1 + HOVE sb.1 Cf. TUNHOOF.] prob. Ground Ivy (Nepeta Glechoma).

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c. 1430.  M. E. Med. Bk. (Heinrich), 221. Herbe pro balneis. Tak yerdhoue [etc.].

2

c. 1460.  J. Russell, Bk. Nurture, 991. The makyng of a bathe medicinable. Holy hokke & yarde-hok [? error for yardehof].

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