Or rbiiy {reb-ee-ee'}; from raba'; fourth; also (fractionally) a fourth -- foursquare, fourth (part).
see HEBREW raba'
H7243. rebii
רְבִיעִי masculine, רְבִיעִית
feminine, adjective ordinal number fourth; — masculine רְבִיעִי Genesis 2:14 29t., רְבִעִי 1 Chronicles 24:8; 26:11; plural רְבִיעִים 2 Kings 15:12, רְבִעִים 10:30; feminine absolute רְבִיעִית 1 Kings 6:1 3t., רְבִיעִת Leviticus 19:29, רְבִעִית 1 Kings 6:37; 6t. + 6:33 (see below); construct רְבִיעִית Numbers 15:5, רְבִיעִת Exodus 29:40 4t., רְבִעִית Numbers 15:4 2t.; — fourth, usually ׳הָֽר:
1. masculine Genesis 2:14; 15:16 (JE), also (especially of days, months, sons, etc.) 1:19; Exodus 28:20; 39:13; Numbers 7:30; 29:23; Joshua 19:17 (all P), Judges 19:5; Jeremiah 39:2; 52:6; 1 Chronicles 27:7b; 2 Chronicles 20:26; Ezra 8:33; noun omitted 2 Samuel 3:4 = 1 Chronicles 3:2; 2:14; 3:15; 8:2; 12:10; 23:19; 24:8, 23; 25:11; 26:2, 4, 11; 27:7a; Ezra 10:14; Daniel 11:2; that is חֹדֶשׁ Ezekiel 1:1; Zechariah 8:19; plural in רְבִ(י)עִים בְּנֵי sons of fourth (ones), i.e. to the fourth Generation, 2 Kings 10:30; 15:12 (compare [רִבֵּעַ], and [Old Aramaic N¢rab] רבע בני Cook107).
2. feminine of years, 1 Kings 6:1, 37; 2 Kings 18:9; Jeremiah 25:1; 28:1; 36:1; 45:1; 46:2; 51:59; Zechariah 6:8; Leviticus 19:24 (H); רְבִעִית מֵאֵת 1 Kings 6:33, read ᵑ9 ᵐ5 רְבֻעוֺת מְזֻזֹת Th Sta Kmp Kit Benz Bur.
3 רְבִיעִית Ezekiel 48:20 four square (read possibly רְבוּעָה).
4 עִ(י)ת רְבִ(י) as noun = fourth part, construct, ׳ר הַהִין Leviticus 23:13 (H), Exodus 29:40; Numbers 15:4-5, 28:5, 7, 14; ׳ר הִיּוֺם Nehemiah 9:3a; so absolute (הַיּוֺם omitted) 9:3 b.