underlie

/ˌʌndərˈlaɪ/
verb
  1. To be the foundation or cause of something; to form the basis of an idea, situation, or argument.
    • Trust underlies every strong relationship.
    • Several scientific principles underlie this new technology.
    • A deep respect for nature underlies the community's environmental policies.
  2. To lie or be situated under something.
    • Geologists studied the rock formations that underlie the mountain range.
    • A layer of clay underlies the topsoil in this region.
    • The bedrock that underlies the city is very old.
Antonyms