geṇḍuka : [m.] a playing ball.

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

Geṇḍuka a ball for playing. The SS spelling is in all places bheṇḍuka, which has been taken into the text by the editors of J. and DhsA. The misspelling is due to a misreading of Singhalese bh>g; cp. spelling parābhetvā for parāgetvā. -- bheṇḍukena kīḷi J iv.30; bhūmiyaŋ pahata -- bheṇḍuka (striking against the ground) J iv.30; Vism 143 (pahaṭa -- citra˚)=DhsA 116 (where wrongly pahaṭṭha -- citta -- bheṇḍuka); J v.196 (citra -- bh˚); DhA iii.364.

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