underlie
uhn der lahy
- v be or form the base for
 - v lie underneath
 
- But because defects in the mitochondria may underlie an astonishing range of very familiar illnesses, researchers are beginning to suspect that the real number is vastly higher.
 - Labor suspects that it knows what causes underlie the discrimination against 40-year-oldsters.
 - But the studies do highlight the very different ideas researchers have today about the mechanisms that underlie the condition.