neuter accusative singular; from diṭṭhi + gahana, a nominal compound
Analysis. diṭṭhi (view, opinion) + gahana (thicket, dense jungle, tangle). In the canon, used metaphorically for the confused tangle of wrong views and philosophical opinions that obscure the path to insight.
Etymology. diṭṭhi from √dṛś (to see), whence Sanskrit darśana; gahana from √gah (to seize, grasp), cognate with English gasp and grasp, expressing something dense and gripping that catches hold. The image is of views as a thick forest one must penetrate.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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