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Provençal
Provençale
Provence
provender
provenience
proventriculus
proverb
proverbial
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provided
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protyle

pro·tyle [ prṓ tl ]


noun 
Definition:
 
imaginary substance: an imaginary substance from which the chemical elements were supposed to have been formed

[Late 19th century. <proto- + Greek hulē "matter"]
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