lustrate

UK: /ˈlʌstreɪt/ US: (lus′trāt)

WordReference Random House Unabridged Dictionary of American English © 2026

lus•trate  (lus′trāt), v.t., -trat•ed, -trat•ing. 

1. to purify by a propitiatory offering or other ceremonial method.

• Latin lūstrātus, past participle of lūstrāre to purify, illumine. See luster¹, -ate¹
• 1615–25;

lus•tra′tion, n. 
lus•tra•tive  (lus′trə tiv), adj. 

Collins Concise English Dictionary © HarperCollins Publishers::

lustrate / ˈlʌstreɪt/ verb

1. (transitive) to purify by means of religious rituals or ceremonies

Etymology: 17th Century: from Latin lūstrāre to brighten

lusˈtration noun