derivation & meaning very doubtful; Bdhgh’s explⁿ at Pp-a 231 is not to be taken as reliable, viz. “sankittetvā katabhattesu hoti. dubbhikkha-samaye kira acela-kāsāvakā acelakānaṃ atthāya tato tato taṇḍul’ādīni samādapetvā bhattaṃ pacanti ukkaṭṭhâcelako tato na paṭigaṇhāti.” DN.i.166 (translation Dial. i.229 “he will not accept food collected, i.e. by the faithful in time of drought”; Neumann “not from the dirty”; Franke “nichts von Mahlzeiten, für die die Mittel durch Aufruf beschafft sind”?); MN.i.77; AN.ii.206 Pp.55. It may be something like “convocation.”

perhaps saṃ + kitti