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proaulion

noun
pro·​au·​li·​on | \prōˈȯlēən, -ēˌän\
plural proaulions\-​nz \ or proaulia\-​ēə \

Definition of proaulion 

: a portico or colonnade that opens into the narthex of a church or temple

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History and Etymology for proaulion

Late Greek, from Greek, vestibule, from pro pro- entry 1 + aulion cottage, chamber, diminutive of aulē court, hall

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