rassa : [adj.] short; dwarfish; stunted.

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

Rassa (adj.) [cp. Sk. hrasva: Geiger, P.Gr. § 492. The Prk. forms are rahassa & hassa: Pischel § 354] short (opp. dīgha) D i.193 (dīghā vā r. vā majjhimā ti vā), 223 (in contrast with d.); Sn 633; Dh 409; J i.356; Dhs 617; Vism 272 (def.); DhA iv.184. -- Cp. ati˚.
   -- ādesa reduction of the determination (here of vowel in ending) J iii.489. -- sarīra (adj.) dwarfish, stunted J i.356.

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