Upādi: lit. 'something which one grasps, to which one clings, i.e. the 5 groups of existence khandha. In the suttas, the word is mostly used in such expressions as;One of the 2 fruits may be expected: either perfect understanding or, if the groups are still remaining sati upādi-sese 'if there is a remainder of groups, Anāgāmīship; D. 22. Further A. IV. 118:;Here the Perfect One has passed into the Nibbāna-element in which no more groups are remaining anupādi-sesa Cf. nibbāna upādinna-rūpa: 'kammically acquired materiality', or 'matter clung-to by kamma', is identical with kamma-produced materiality kammaja-rūpa, see: samutthāna In Vis.M XIV it is said:;That materiality which, later on, we shall refer to as 'kamma-produced' kammaja is, for its being dependent on previous pre-natal kamma, called 'kammically acquired'. The term upādinna occurs so in the suttas, e.g. M. 28 WHEEL 101, 62, 140. See Dhs. §990; Khandha Vibh.
Maha Thera Nyanatiloka. Manual of Buddhist Terms and Doctrines, Buddhist Publication Society, first edition 1952.