APROPOS
apropos
(adjective) of an appropriate or pertinent nature
seasonably, timely, well-timed, apropos
(adverb) at an opportune time; “your letter arrived apropos”
Source: WordNet® 3.1
Etymology
Adjective
apropos (comparative more apropos, superlative most apropos)
Of an appropriate or pertinent nature.
by the way, incidental.
Synonyms
• (by the way): by the way, incidentally, incidental
Preposition
apropos
Regarding or concerning.
Synonyms
• about, as for; See also about
Antonyms
• malapropos
Adverb
apropos
By the way.
Timely; at a good time.
To the purpose; appropriately.
Anagrams
• Sapporo
Source: Wiktionary
Ap"ro*pos`, a. & adv. Etym: [F. ad) + propos purpose, L. proposium
plan, purpose, fr. proponere to propose. See Propound.]
1. Opportunely or opportune; seasonably or seasonable.
A tale extremely apropos. Pope.
2. By the way; to the purpose; suitably to the place or subject; -- a
word used to introduce an incidental observation, suited to the
occasion, though not strictly belonging to the narration.
Source: Webster’s Unabridged Dictionary 1913 Edition