dormir
sleep
dormant
inactive, as if asleep
+
-ir
verb suffix
Dormir means to sleep and can be related to the English word dormant0 (inactive, as if asleep0) + -ir1 (verb1).
verb
  1. sleep
    To be in a state of sleep
    Necesito dormir ocho horas cada noche. // I need to sleep eight hours every night.