accusative singular neuter of pītisukha (adjective or abstract noun)
Analysis. pīti (joy, delight in meditation) + sukha (happiness, ease); a compound denoting the second and third factors of absorption (jhāna), where pīti is the intense emotional uplift and sukha the sustained pleasure accompanying deep concentration.
Etymology. pīti from √pi (to swell, be full) — the swelling forth of emotion; sukha from su- (well, good) + √kha (?) or cognate with Sanskrit sukha, opposite of dukkha. Together they form a canonical pair in the four jhānas, where pīti predominates in the first two and sukha in the third and fourth.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
Lite mode — plain HTML for e-readers and old browsers. Full version