adj. occurring or existing concurrently; a thing that exists congruently with another.
This is a nice, technical sounding word that’s fun to say. It refers to anything, an idea, object or person, which shares perpendicular space with another similar thing. You’re concomitant with your neighbor, but also the idea of happiness is concomitant with the idea of self-fulfillment. Saving money is concomitant not spending too much. Your dog is concomitant with the other dog he’s trying so hard to sniff.
The word is found frequently in scientific contexts.
What we have now — to quote myself at my most pretentious — is a nimiety of scurrility with a concomitant exiguity of taste.
—Tom Lehrer (pub. 1997)Besides the unregulated association of ideas there appears in most romanticists its natural concomitant, mysticism.
—Degeneration by Max Simon Nordau (pub. 1892)
Etymology, working backward:
French concomitant (same meaning)
Latin concomitantem (same meaning)
concomitor (I accompany)
con- (with, together)
-comitor (accompany, follow)
comes (companion)
Usage, according to the Google’s NGrams Viewer (may not be perfectly accurate):
For context, note that ‘the’ usually floats at ~4%.