What is the meaning of Plag?

plagioclase feldspar

imperative of plage

a cut-out sod, an excavated flat piece of top soil grown with grasses or heath; in the past used as fuel or roof covering

a flat, excavated piece of peat

a cloth, a rag

singular imperative of plagen

first-person singular present of plagen

imperative of plage

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Source: wiktionary.org