αρξαμενος verb - aorist middle passive - nominative singular masculine
archomai  ar'-khom-ahee:  to commence (in order of time) -- (rehearse from the) begin(-ning).
δε conjunction
de  deh: but, and, etc. -- also, and, but, moreover, now (often unexpressed in English).
ο definite article - nominative 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.
πετρος noun - nominative singular masculine
Petros  pet'-ros: as a name, Petrus, an apostle -- Peter, rock.
εξετιθετο verb - imperfect middle indicative - third person singular
ektithemi  ek-tith'-ay-mee: to expose; figuratively, to declare -- cast out, expound.
αυτοις personal pronoun - dative plural masculine
autos  ow-tos': the reflexive pronoun self, used of the third person , and (with the proper personal pronoun) of the other persons
καθεξης adverb
kathexes  kath-ex-ace': thereafter, i.e. consecutively; as a noun (by ellipsis of noun) a subsequent person or time -- after(-ward), by (in) order.
λεγων verb - present active passive - nominative singular masculine
lego  leg'-o: ask, bid, boast, call, describe, give out, name, put forth, say(-ing, on), shew, speak, tell, utter.