ψευδομαρτυρίαι, [1 verse](noun pl fem nom) "False witness" is pseudomartyria, which means "false witness" and "perjury."  - "False witness" means "perjury."

ψευδοπροφητῶν, [5 verses] (noun pl masc gen) "False prophets" is pseudoprophētēs. which means a "false" or "lying" prophet, which means "one who speaks for a god and interprets his will," "interpreter," "keepers of the oracle," "the highest level of priesthood in Egypt," and "herald." In the Septuagint, this word is used to translated the Hebrew nabiy' (נָבִיא), which is the same word translated as "prophet." It seems to have been used to separate Israel's true prophets from those the Septuagint translators saw as pretenders.  -- "False prophets" from a hybrid Greek word that means "lying interpreters of god's will" or "fake interpreters." This Greek word appears for the first time in the Septuagint, the Greek OT.

ψεῦδος, [1 verse](noun sg neut nom/acc) "A lie" is from pseudos, which means "falsehood", "lie", "deceit", "fallacy", "false conclusion", "false doctrine," and, interestingly enough, "pimples" on the nose and "white spots" on fingernails, which are supposed characteristics of liars.

ψεύστης [2 verses](noun sg masc nom) "A liar" is from pseustes, which means "liar", "cheat", "lying," and "false." -- "Liar" is a word that means, as a noun, "liar", "cheat", or the adjective, "lying," and "false."

ψωμίον [1 verses](noun sg neut acc) "Sop" is from psōmion, a diminutive form of the Greek word psomos (ψωμός) meaning "a morsel" or "a bit." It also means a gobbet of a man's flesh. So this means a "small morsel." This is the only time this word is used by Jesus and it is very rare in ancient Greek, appearing in only three works in the Perseus library.