term:

Oyez

oyez vb imper

[Anglo-French oyez! hear ye!, from Old French oiez oyez, imperative plural of oir to hear, from Latin audire]
used by a court officer (as a bailiff) to gain the attention of people present at the commencement of a judicial proceeding

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.