masc nom sg of rukkha (noun)
Etymology. From Proto-Indo-European *h₂erǵ- 'to rise, grow tall'. Cognates: Sanskrit ṛkṣa- (tree), Greek ἀργός (argilos, white clay—from the pale wood), and possibly English oak (though this is disputed). The root's spatial sense 'rising up' underwrites the meaning; the word denotes the plant that grows tall and erect.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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