και conjunction
kai  kahee: and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
πεμψας verb - aorist active passive - nominative singular masculine
pempo  pem'-po: to dispatch, especially on a temporary errand; also to transmit, bestow, or wield -- send, thrust in.
απεκεφαλισεν verb - aorist active indicative - third person singular
apokephalizo  ap-ok-ef-al-id'-zo:  to decapitate -- behead.
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.
ιωαννην noun - accusative singular masculine
Ioannes  ee-o-an'-nace: Joannes (i.e. Jochanan), the name of four Israelites -- John.
εν preposition
en  en: in, at, (up-)on, by, etc.
τη definite article - dative 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.
φυλακη noun - dative singular feminine
phulake  foo-lak-ay': a guarding or (concretely, guard), the act, the person; figuratively, the place, the condition, or (specially), the time (as a division of day or night), literally or figuratively -- cage, hold, (im-)prison(-ment), ward, watch.