tinstone (medicine) and durra (iou)

tinstone (medicine)

tinstone
<chemical> Cassiterite.

Source: Websters Dictionary

durra (iou)

durra noun. Also dhurra, dourra, dura, & Other vars. L18.
[Arab. ura.]
A variety of grain sorghum, Sorghum bicolor var. durra, grown esp. in N. Africa and the Indian subcontinent.

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