paccupaṭṭhāna : [nt.] understanding; appearance; coming on; attending.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Paccupaṭṭhāna (nt.) [fr. paṭi+upa+sthā; cp. Cpd. 13 & Lakkhaṇa] 1. (re)appearance, happening, coming on, phenomenon J iii.524; Nett 28; SnA 509; DhsA 332; ThA 288. 2. tending D iii.191. 3. vv. ll. gilānupaṭṭhāna.

Pali-English Dictionary, TW Rhys Davids, William Stede,