Aticchati [*Sk. ati -- ṛcchati, ati + ṛ, cp. aṇṇava] to go on, only occurring in imper. aticchatha (bhante) "please go on, Sir", asking a bhikkhu to seek alms elsewhere, thus refusing a gift in a civil way. [The interpretation given by Trenckner, as quoted by Childers, is from ati + 'iṣ "go and beg further on". (Tr. Notes 65) but this would entail a meaning like "desire in excess", since iṣ does not convey the notion of movement] J iii.462; DhA iv.98 (T. aticcha, vv. ll. ˚atha); VvA 101; Miln 8. -- Caus. aticchāpeti to make go on, to ask to go further J iii.462. <-> Cp. icchatā.

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