εισηλθεν verb - second aorist active indicative - third person singular
eiserchomai  ice-er'-khom-ahee: to enter -- arise, come (in, into), enter in(-to), go in (through).
δε conjunction
de  deh: but, and, etc. -- also, and, but, moreover, now (often unexpressed in English).
σατανας noun - nominative singular masculine
Satanas  sat-an-as': the accuser, i.e. the devil -- Satan.
εις preposition
eis  ice: to or into (indicating the point reached or entered), of place, time, or (figuratively) purpose (result, etc.); also in adverbial phrases
ιουδαν noun - accusative singular masculine
Ioudas  ee-oo-das': Judas (i.e. Jehudah), the name of ten Israelites; also of the posterity of one of them and its region -- Juda(-h, -s); Jude.
τον definite article - accusative singular masculine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
επικαλουμενον verb - present passive participle - accusative singular masculine
epikaleomai  ep-ee-kal-eh'-om-ahee: to entitle; by implication, to invoke (for aid, worship, testimony, decision, etc.) -- appeal (unto), call (on, upon), surname.
ισκαριωτην noun - accusative singular masculine
Iskariotes  is-kar-ee-o'-tace: inhabitant of Kerioth; Iscariotes (i.e. Keriothite), an epithet of Judas the traitor -- Iscariot.
οντα verb - present participle - accusative singular masculine
on  oan: being -- be, come, have.
εκ preposition
ek  ek: a primary preposition denoting origin (the point whence action or motion proceeds), from, out (of place, time, or cause literal or figurative; direct or remote)
του definite article - genitive singular masculine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
αριθμου noun - genitive singular masculine
arithmos  ar-ith-mos':  a number (as reckoned up) -- number.
των definite article - genitive plural masculine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
δωδεκα numeral (adjective)
dodeka  do'-dek-ah: two and ten, i.e. a dozen -- twelve.