Apropos
Pronunciation : Ap"ro*pos`
Part of Speech : a. & adv.
Etymology : [F. ad) + propos purpose, L. proposium plan, purpose, fr. proponere to propose. See Propound.]
Definition : 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