Definition of agatize in English:

agatize

(also agatise)

verb

Geology
rare
  • with object To convert into agate or a form containing agate. Usually in pass.

Origin

Mid 17th century; earliest use found in Henry Wotton (1568–1639), diplomat and writer. From agate + -ize.

Pronunciation:

agatize

/ˈaɡətʌɪz/