Khmer Dictionary: ឫសី

1. ឫសី ( n ) [rɨʔsəy]
   hermit, ascetic; priest; scholar
   
2. ឫសី ( n ) [rɨʔsəy]
   ancient Cambodian word game involving the scrambling and unscrambling of the letters in a word or sentence; encoded message. (There may be an almost infinite number and variety of rules. One rule is ដកបីស្រង់បី which means `3 by 3,' that is, the letters of the encoded message are to be extracted in threes, thus: ល្អក្រចិមិយូត្តនរៈ the first third letter is ចិ, then ត្ត then ល្អ (counting ន as 1 and រ as 2, then going back to the beginning. The decoded version of the above is ចិត្តល្អមិនក្រយូរ )
   
   Reference: ឫសីប្លែងសារ