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DictionaryRoot: con-
Latin

con-

together, with; sometimes thoroughly

Forms

  • con-
  • com- — Used before certain consonants, especially b, p, and m.
  • col- — The final consonant changed before l.
  • cor- — The final consonant changed before r.
  • co- — The final consonant was lost in some combinations.

Origin

From Latin cum, “with,” and an older form com-.

Note

Togetherness could extend to completeness. Not every word containing this prefix retains an obvious “with” meaning.

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adjective

concurrent

kun-KUR-ent/kənˈkɜːrənt/

Existing or operating at the same time.

Two concurrent batches simmer in separate pots on the stove.

Two adjacent small cooking pots simmer simultaneously on the same two-burner stove, both steaming at once, no text.
Etymology
conLatintogether, with; sometimes thoroughly
+currLatinrun
+entLatindoing or being something

Literally 'running together,' concurrent applies that image to things proceeding alongside one another in time. They need not agree or cooperate; the selected sense concerns their simultaneous occurrence.

In context

Talks at Google9:22
ALEX GARLAND: What Natalie has as an actor is she's got these two concurrent things going on at the same time.
Annihilation | Alex Garland | Talks at Google

More examples

  • The conference offers concurrent sessions, so we must choose one.
  • She serves concurrent sentences for the two offenses.
  • The server handles hundreds of concurrent requests.

Forms

concurrently adverb — At the same time as something else.

concurrency noun — The state of happening at the same time.

Similar words

simultaneous
Often stresses identical timing rather than simply overlapping periods.
contemporaneous
Usually places events within the same period, especially historically.