|Noah Webster's Dictionary|
1. (n.) A rite or ceremony performed with religious reverence; religious or ritual ceremony; as, the solemnity of a funeral, a sacrament.
2. (n.) ceremony adapted to impress with awe.
3. (n.) Ceremoniousness; impressiveness; seriousness; grave earnestness; formal dignity; gravity.
4. (n.) Hence, affected gravity or seriousness.
5. (n.) Solemn state or feeling; awe or reverence; also, that which produces such a feeling; as, the solemnity of an audience; the solemnity of Westminster Abbey.
6. (n.) A solemn or formal observance; proceeding according to due form; the formality which is necessary to render a thing done valid.
Int. Standard Bible Encyclopedia
sol'-em, so-lem'-ni-ti: The word "solemn" had
(1) at first the meaning "once in the year," through its derivation from Latin sollus, "whole," annus, "year." As, however, a regular annual occurrence is usually one of particular importance, the word took on
(2) the meaning "ceremonious." From this is derived
(3) the usual modern force of "grave" in opposition to "joyous."
This last meaning is not in Biblical English, and the meanings of "solemn" in English Versions of the Bible are either (1) or (2). Nor is there any certain case of (1), for the word is always a gloss in English Versions of the Bible and, although frequently introduced in references to annual events (Leviticus 23:36, etc.), it is even more often used where "annual" is foreign to the passage (2 Kings 10:20 Psalm 92:3, etc.). The use of the word in the King James Version is unsystematic. It is always (except in Jeremiah 9:2) found in conjunction with "assembly" when (10 times) the latter word represents atsarah ('atsereth) (Leviticus 23:36, etc.) (retained by the Revised Version (British and American) with margin "closing festival," Leviticus 23:36 2 Chronicles 7:9; Nehemiah 8:18). the King James Version uses "solemnity" or "solemn day," "feast," etc., 17 times for the very common word mo`edh ("appointed" time, etc.).
RV's treatment of these passages defies analysis. "Solemnity" is kept in Isaiah 33:20 Ezekiel 46:11, and "solemn" in Lamentations (4 times); Hosea (3 times); Zechariah 3:18. In Ezekiel 36:38; Ezekiel 45:17; Ezekiel 46:9 it is replaced by "appointed," elsewhere (and for mo'adhoth, 2 Chronicles 8:13) by "set." The margins further complicate the renderings. the King James Version also uses "solemn" with chagh, "feast," 4 times, and with chaghagh, "keep a feast," in Deuteronomy 16:15. The word is dropped by the Revised Version (British and American), except the English Revised Version in Psalm 81:3. Finally, the King James Version and the Revised Version (British and American) have "solemn sound" for higgayon, in Psalm 92:3. The context, however, demands "resounding melody." And 11 times the Revised Version (British and American) has introduced "solemn" to represent the intensive in the form shabbath shabbathon (Exodus 16:23, etc.), where the King James Version has simply "sabbath" or "sabbath of rest." the Revised Version (British and American) here has imitated the adverbial "solemnly" in the similar intensified expressions in Genesis 43:3 1 Samuel 8:9.
The Revised Version (British and American) Apocrypha translates en hemerais kairou, "in the days of the season" (Baruch 1:14), by "on the days of the solemn assembly" (the King James Version "solemn days"), and both the King James Version and the Revised Version (British and American) have "solemn feast days" for dies festos (2 Esdras 1:31). Otherwise the King James Version's use of "solemn" is dropped by the Revised Version (British and American).
Burton Scott Easton
Solemnity (3 Occurrences)
John 19:31 Meanwhile the Jews, because it was the day of Preparation for the Passover, and in order that the bodies might not remain on the crosses during the Sabbath (for that Sabbath was one of special solemnity) (WEY)
Deuteronomy 31:10 And Moses commanded them, saying, At the end of every seven years, in the solemnity of the year of release, in the feast of tabernacles, (KJV WBS)
Isaiah 30:29 Ye shall have a song, as in the night when a holy solemnity is kept; and gladness of heart, as when one goeth with a pipe to come into the mountain of the LORD, to the mighty One of Israel. (KJV WBS)