περιτομήν, [2 verses](noun sg fem acc) "Circumcision" is from peritome, which means a "circular incisions", "circumcision," and "section" [of a machine]. -- The word translated as "circumcision" means literally "cut around,"  meaning "circular incisions", and "circumcision."

περιεζωσμέναι [3 verses](part pl perf mp fem nom) "Girded" is perizōnnymi, which means "to gird round oneself", "to gird oneself with" and "to put on a defence." -- - The Greek verb translated as "gird"  means "to gird around ", that is to say, "brace around".  It also means "to put on a defense" so "to fortify." 

πετεινὰ [13 verses](adj pl neut acc) "Birds" is peteinon, which as an adjective means "able to fly," "full-fledged," and "winged," and, as a noun, "winged fowl," and "a bird." There was clearly a conscious choice here not to use the Greek word for bird, which is ornis, or, in the diminutive, ornithion. All the English words referring to birds coming from Greek begin with this "ornith" prefix, including ornithology, the study of birds. - The Greek word translated as "birds" is normally an adjective means "able to fly" and "winged," but it is used as a noun here, so "winged-ones" or, more simply, "birds." Jesus always uses this word to refer to birds generally, not the one of the more common normal Greek words that means "bird," but those other words are not used in the Septuagint.

πέτραν [8 verses] (noun sg fem acc) "Rock" is from petra, which means "rock," "boulder," and "stone" as a building material. It has the specific meaning of "rocky cliffs" or "ledges" over the sea and a "rocky peak" or "ridge."  -- "Rock" is a noun that means "rock," "boulder," and "stone" as a building material. It has the specific meaning of "rocky cliffs" or "ledges" over the sea and a "rocky peak" or "ridge."

πετρώδη [4 verses](adj pl neut acc) "Stony places" is from petrôdês, which is an adjective meaning "like rock" ""rocky," and "stony."  - Stony places" is from an adjective that means "rocklike" and "stony." It is used as a noun, being introduced by an article ("the"), so "the stoniness" or "the rockiness." The metaphor here is a hardness of mind.