From chabar; a junction, i.e. Seam or sewed piece -- coupling.
see HEBREW chabar
H4225. machbereth
מַחְבֶּ֫רֶת noun feminine thing joined, place of joining; — absolute ׳מ Exodus 26:4 3t.; מַחְבָּ֑רֶת 36:11, 17; suffix מַחְבַּרְתּוֺ 28:27; 39:20; —
1 thing joined, of curtain-pieces of tabernacle (compare חֹבֶרֶת), Exodus 26:4-5, 36:11 (twice in verse); 36:12.
2 place of joining:
a. of the curtains Exodus 36:17.
b. of shoulder-pieces of the ephod Exodus 28:27; 39:20 (all P).