Emmanuel = "God with us"
derivation: of Hebrew origin (06005)
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=1694&version=kjv

(06005)
Immanuel = "God with us" or "with us is God"
derivation: from (05973) and (0410) with a pronominal suffix inserted
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=6005&version=kjv

(05973)
1] with
   1.a] with
   1.b] against
   1.c] toward
   1.d] as long as
   1.e] beside, except
   1.f] in spite of
derivation: from (06004)
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=5973&version=kjv

(06004)
1] to dim, darken, grow dark
   1.a] (Qal) to dim, eclipse, be held dark
   1.b] (Hophal) to be dimmed, grow dark
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=6004&version=kjv

(0410)
1] god, god-like one, mighty one
   1.a] mighty men, men of rank, mighty heroes
   1.b] angels
   1.c] god, false god, (demons, imaginations)
   1.d] God, the one true God, Jehovah
mighty things in nature strength, power
derivation: shortened from (0352)
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=410&version=kjv

(0352)
1] ram
   1.a] ram (as food)
   1.b] ram (as sacrifice)
   1.c] ram (skin dyed red, for tabernacle)
2] pillar, door post, jambs, pilaster
3] strong man, leader, chief
4] mighty tree, terebinth
derivation: from the same as (0193)
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=352&version=kjv

(0193)
1] prominence
   1.a] body, belly (contemptuous)
   1.b] nobles, wealthy men
derivation: from an unused root meaning to twist, i.e. (by implication) be strong
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=193&version=kjv

Additional information:
One of the sources for the testimony in paragraph 002-a was the author of the book named "Isaiah" which was written in Hebrew. Another of the sources for the testimony in paragraph 002-a was the author of the book named "Matthew", the existing manuscripts of which were written in Greek. The Greek form of the word is "Emmanuel" which form is merely a transliteration of the Hebrew word "Immanuel". In This Good Riddle, the Hebrew form was therefore used in preference to the Greek form. It should nevertheless be emphasized, for the benefit of those who wish to search the King James Version (KJV) of the Christian Bible, that such a search must use the Greek form, "Emmanuel", in order for the word to be found, in the KJV, in the so-called New Testament. In a similar fashion, a search of the so-called Old Testament, in the KJV, must be made with the form "Immanuel" in order for it to be found.

A link to each occurrence of this word in the homepage:
1] Emmanuel