maddana : [nt.] crushing; trampling; threshing.

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

Maddana (nt.) [cp. Epic Sk. mardana, fr. mṛd] 1. crushing, grinding, destroying J iv.26; Miln 21 (adj.,+mathana); Sdhp 449; Dhtp 156. -- 2. threshing Miln 360. -- See also nimmaddana, pamaddana, parimaddana.

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