From tsahar; oil (as producing light); figuratively, anointing -- + anointed oil.
see HEBREW tsahar
H3323. yitshar
I. יִצְהָר noun [masculine] fresh oil (newly appeared, compare 'Ausbruch' LagBN 129 Köii. 1, 93; > Thes and others that which shines); — absolute ׳יִצ Hosea 2:10 +, suffix יִצְהָרֶ֑ךָ Deuteronomy 7:13 +; — fresh oil, as product of land, in un-manufactured state, usually + דָּגָן תִּירוֺשׁ, etc., rich possession, gift of, ׳י Hosea 2:10; Hosea 2:24; Jeremiah 31:12; Deuteronomy 7:13; 11:14; Joel 2:19, 24, so יִצ ׳חֵלֶב Numbers 18:12; Deuteronomy 28:51; Haggai 1:11; 2 Chronicles 32:28; Nehemiah 5:11; tithed Deuteronomy 12:17; 14:23; firstfruits for priest 18:4; Nehemiah 10:38 compare Nehemiah 10:40; 13:5 (tithe for Levites), 13:12, for priest and Levite 2 Chronicles 31:5; יִצ ׳זֵית 2 Kings 18:32 oil-olive, i.e. oil-yielding olive-trees, compare ׳יִצ alone Joel 1:10; ׳יִצ as anointing oil only in הַיִּצ ׳בְּנֵי Zechariah 4:14, i.e. anointed ones.