catuttha : [adj.] fourth.

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

Catuttha (num. ord.) [Vedic caturtha, Idg. *queturto=Gr. te/tratos, Lat. quartus, Ohg. fiordo] the fourth Sn 97, 99, 450; J iii.55; vi.367; ˚ŋ (adv.) for the fourth time DhA iii.174. -- f. catutthī Sn 436; Vism 338. -- See also (s.v. Aḍḍha) aḍḍhuḍḍha.
   -- bhatta food eaten only every fourth day J v.424. -- magga "the fourth Path," of Arahantship DhA i.309; -- mana (?) (nt.) name of the tongue, in so far as it forms the fourth vatthu (beside eyes, ears, nose) according to the gloss: J v.155; extremely doubtful.

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

catuttha: a. 第四

巴漢辭典 編者：(斗六) 廖文燦