linkage

/L IH1 NG K AH0 JH/
noun
  1. 1

    A mechanical device that connects things.

    โ€œA linkage in my car's transmission is broken so I can't shift out of first gear.โ€

  2. 2

    A connection or relation between things or ideas.

  3. 3

    The property of genes of being inherited together.

  4. 4

    A set of definitely related languages for which no proto-language can be derived, typically a group of languages within a family that have formed a sprachbund.

Source: https://en.wiktionary.org/wiki/linkage