επει conjunction
epei  ep-i': thereupon, i.e. since (of time or cause) -- because, else, for that (then, -asmuch as), otherwise, seeing that, since, when.
πολλοι adjective - nominative plural masculine
polus  pol-oos': abundant, altogether, common, far (passed, spent), (be of a) great (age, deal, -ly, while), long, many, much, oft(-en (-times), plenteous, sore, straitly.
καυχωνται verb - present middle or passive deponent indicative - third person
kauchaomai  kow-khah'-om-ahee: to vaunt (in a good or a bad sense) -- (make) boast, glory, joy, rejoice.
κατα preposition
kata  kat-ah': (prepositionally) down (in place or time), in varied relations
την definite article - accusative singular feminine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
σαρκα noun - accusative singular feminine
sarx  sarx: carnal(-ly, + -ly minded), flesh(-ly).
καγω personal pronoun - first person nominative singular - contracted form
kago  kag-o': so also the dative case kamoi kam-oy', and accusative case kame kam-eh' and (or also, even, etc.) I, (to) me
καυχησομαι verb - future middle deponent indicative - first person singular
kauchaomai  kow-khah'-om-ahee: to vaunt (in a good or a bad sense) -- (make) boast, glory, joy, rejoice.