Middle English Dictionary Entry

piretrum n.
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Entry Info

Definitions (Senses and Subsenses)

Note: Cp. peritori(e, peletre.
1.
(a) The medicinal root, pellitory or pellitory of Spain Anacyclus pyrethrum; also, the herb pellitory of the wall Parietaria officinalis or a similar plant; (b) wild thyme Thymus serpyllum.