dative : (nt.) samadānakāraka. (f.) catutthī vibhatti.

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

tu

[translation-eng] {Hopkins} accusative; dative; and locative particle: to; in; as; -ly; at

Jeffrey Hopkins' Tibetan-Sanskrit-English Dictionary

du

[translation-san] {C} kati

[translation-eng] {Hopkins} accusative, adverbial accusative, dative, and locative particle: to; in; as; -ly; at; many; plural

[translation-eng] {C} how many?; some; several

Jeffrey Hopkins' Tibetan-Sanskrit-English Dictionary