noun (masculine), locative singular of sammohavihāra
Analysis. saṁ-moha-vihāra: saṁ (together, completely) + moha (delusion) + vihāra (dwelling, abode); "dwelling characterized by complete delusion", a metaphorical place of mental confusion
Etymology. saṁ intensifies moha (delusion, from √muh "to be confused"; cognate with Sanskrit moha and German "Mühe" in the sense of struggle/confusion); vihāra is from vi-√hṛ "to carry apart", hence "dwelling" or "resort"
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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