Definition of undergird in English:

undergird

verb

[WITH OBJECT]
  • 1 Secure or fasten from the underside, especially by a rope or chain passed underneath.

    1. 1.1formal Provide support or a firm basis for.
      • ‘Some are, some aren't, depending on the philosophical basis which undergird those theories.’
      • ‘Her primary argument that passion undergirds all vital human endeavor and is the underlying basis for all human motivation/action leads to her overall conclusion.’
      • ‘Until there are some real human institutions undergirding their society, they need a semi-authoritarian center.’
      • ‘The church lent its ideological support to the state; the state undergirded the authority of the church with its secular power; neither interfered in the other's affairs.’
      • ‘This issue undergirds every one of our human interactions.’

Pronunciation:

undergird

/ˌəndərˈɡərd/