praesideo

Etymology
From.

Verb

 * 1) to sit before or in front of
 * 2) to sit beforehand
 * 3) to guard, watch, protect, defend
 * 4) to preside over, have the care or management of, direct, command, control, govern, superintend

Conjugation

 * This verb has only limited passive conjugation; only third-person passive forms are attested in surviving sources.