Apropos is defined as doing something when it is a good time to do it.
(adverb)A check arriving in the mail the day before your rent is due is an example of the check arriving apropos.
The definition of apropos is something that is connected to a certain situation.
(adjective)If a lawyer refers to a previous court ruling in a similar case, that referral would be apropos to the current case.
See apropos in Webster's New World College Dictionary
adverb
Origin: Fr à propos, to the purpose < L ad, to + propositus, pp. of proponere, propose
adjective
See apropos in American Heritage Dictionary 4
adjective
Origin:
Origin: French à propos
Origin: : à, to (from Old French a, from Latin ad-; see ad-)
Origin: + propos, purpose (from Latin prōpositum, neuter past participle of prōpōnere, to intend; see propose)
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