missing "and"  -- (MW) The untranslated word  "and" is used as the conjunction "and," but it also is used to add emphasis, "even," "also," and "just."In a series, it can be translated as "not only...but also." After words implying sameness "as."

Blessed -- (CW) The word "blessed" in Greek is an adjective a noun meaning "happy" or "fortunate" but with the sense of being favored by God. However, it does not refer to a religious blessing. It can also mean "wealthy" with in the sense of "the wealthy" (men with a fortune).

is -- The verb "is" here is the common form of "to be" in Greek. It means to have a certain characteristic or remain in a certain condition. It also equates terms or assigns characteristics.  The word also means "to exist" and where it doesn't connect to characteristics or conditions.

anyone -- (IW) This word is not in the Greek source.

who -- The word translated as "who" is a demonstrative pronoun ("this" "that"), but it often acts as a pronoun, "he," "she," "it," "which," "what," "who," "whosoever," "where," "for which reason," and many similar meanings.

missing "when"  -- (MW) The untranslated word  "when" makes reference to a time and experience in the future that introduces but does not determine an event. It can be used after a demonstrative pronoun to mean "that possibly," "whosoever," or "whatsoever."

does -- This English helping verb is used to create questions, commands, negative statements, and smooth word flow in translation from Greek

missing "should" or "might"-- (MW) A helping verb is necessary because the following verb is a verb of possibility, a subjunctive, something that "should" or "might" occur. The helping verb is not needed in a clause beginning with an "if," "when," "whoever" and other conditional clauses, but the when is untranslated.

not  --  The negative used here is the Greek negative of a subjective opinion, commands, verbs of possibility, and requests. Used with verbs in the mood of possibility to express a prohibition. If not used with a verb of subjective action--thinking, feeling, seeing, etc.--its sense is that "not wanting" or "thinking" something, not that it isn't done or thought. 

stumble --  "Stumble " is a verb that means "to cause to stumble" or "to trip up." It is in the passive so the sense is "stumble." From there it is assumed by its translators to mean "to give offense" and "to scandalize." Our word "scandalize" comes directly from the Greek. However, this interpretation of the word only comes from the translators of the Gospels. This is a Koine word that is found originally only in the New Testament, but based on a noun found only in the Greek Old Testament meaning "snare," or "stumbling block." The noun is changed to a verb by adding an ending very much like we add "ize" to a noun in order to make it a verb.  So, literally, it would mean to "make or perform a stumble." In English, we would simply say, "trips up" capturing the same idea exactly. Or, in the passive, "is tripped up."  See the article on this word here. 

on account of -- (CW) The word translated as "on account of" means "in," "within," "with" (an instrument), "by" (near), "by" (means of), "during" (time),  or "among"  with a dative object as the one here.  With the accusative, it means "into," "on," and "for." When referring to time, it means "during." It can mean "on," "at," or "by" in the sense of "near." -- (CW)  This is not the word usually translated as this word. CW --Confusing Word -- This is not the common word usually translated as "on account of."

me. -- The "me" is in the indirect object form of the first-person pronoun, so usually "to me,""for me," and "by me." A dative object of a preposition implies no movement, but in a fixed position, events that occur at a specified time or while the action was being performed.