rato

ra

masc abl sg of ra (letter); masc abl pl of ra (letter); masc nom sg of rata (pp)

ra (letter): (gram) letter r; 35th letter of the alphabet; retroflex semi-vowel
rata (pp): delighted (with); devoted (to); taking pleasure (in); pleased (with); enjoying

Built from

ra — root · delight, enjoy
The root expressing pleasure, enjoyment, and emotional attachment. Related to Sanskrit ramati and Latin ramex (branch, pleasantness of shade).
ta — ending · past participle (masc. nom. sg.)
The -ta ending marks a completed action; here 'one who has been delighted with', hence 'devoted to' or 'taking pleasure in'.

Etymology. From √ram 'to delight, enjoy'; cognate with Latin ramex and Sanskrit ramati. The root carries the sense of finding pleasure or contentment in something.

Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.

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