nt abl sg of viññāṇañcāyatana (noun)
Analysis. viññāṇa (consciousness) + ñcāyatana (abode, realm); the four immaterial āyatanas or spheres of meditative attainment, this being the fourth and highest, where consciousness itself becomes the object of meditation.
Etymology. viññāṇa: vi (apart, asunder) + √ñā (know), so 'consciousness' as discriminating knowledge that sorts experience into distinct parts; ñcāyatana is sandhi for yatana, from √tan (stretch, extend, dwell), literally 'stretched-out place' or 'sphere of dwelling'; cognate with Latin tendere (stretch), English tend. The four āyatanas are states reached in deep meditation where the gross body falls away and only mind remains.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
Lite mode — plain HTML for e-readers and old browsers. Full version