paṭicchādī : [adj.] hiding; covering; concealing; obscuring.

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

Paṭicchādī (f.) [fr. paṭicchādeti] 1. covering, protection Vin ii.122. -- 2. antidote, remedy, medicine (or a cloth to protect the itch) Vin i.296; iv.171.

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