fitting; at the right time; to the purpose; opportunely.
Obsolete. by the way.
opportune; pertinent: apropos remarks.
apropos of, with reference to; in respect or regard to: apropos of the preceding statement.
Origin of apropos
< French à propos
literally, to purpose < Latin ad prōpositum.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for apropos of
appropriately or pertinently
by the way; incidentally
apropos of (preposition) with regard to; in respect of
Word Origin for apropos
C17: from French à propos to the purpose
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for apropos of
1660s, "opportunely," from French à propos "to the purpose," from propos "thing said in conversation, talk; purpose, plan," from Latin propositium "purpose," past participle of proponere "to set forth, propose" (see propound). Meaning "as regards" is 1761, from French. As an adjective, "to the point or purpose," from 1690s.
Online Etymology Dictionary, © 2010 Douglas Harper
Idioms and Phrases with apropos of
Concerning, in connection with, as in Apropos of keeping in touch, I haven't heard from her in months. This idiom was a borrowing of the French à propos de (“to the purpose of”) in the 17th century. At first it was used without of and meant “fitting” or “opportune,” as in Their prompt arrival was very appropos. By the 1700s it was also being used with of, as in the current idiom, for “concerning” or “by way of.”
The American Heritage® Idioms Dictionary
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