[501] A phenomenon (dhamma) accompanied by pleasure (sukha) is a condition for a phenomenon accompanied by rapture (pīti) by way of predominance condition (adhipati-paccaya): object-predominance (ārammaṇādhipati), conascence-predominance (sahajātādhipati). … (abridged)
Conascence-predominance: the predominance accompanied by pleasure is a condition for the associated aggregates (khandhā) accompanied by rapture by way of predominance condition.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.