Abarim Publications' online Biblical Hebrew Dictionary
עלז עלס עלץ
The three root-verbs עלז ('alaz), עלס ('alas) and עלץ ('alas) are linguistically very closely related. So much even that it's likely that the three are really the same word, sounding reasonably similar and spelled different according to different dialects.
The root-verb עלז ('alaz) means to exult, and occurs in the Bible about two dozen times (Psalm 96:11, Jeremiah 50:11, Proverbs 23:16). Its derivations are:
- The adjective עלז ('alez), meaning exultant or jubilant (Isaiah 5:14 only).
- The adjective עליז ('aliz), also meaning exultant or jubilant (Isaiah 22:2, Zephaniah 3:11).
The root-verb עלס ('alas) means to rejoice. It occurs three times in Scriptures: Job 20:18, Job 39:13 and Proverbs 7:18. This particular form has no derivations.
The root-verb עלץ ('alas) means to rejoice or exult. It occurs in Bible eight times (1 Samuel 2:1, Proverbs 11:10). Its sole derivation is the feminine noun עליצות (''alisut), meaning exultation. This noun is used only once in the Bible, in Habakkuk 3:14.