A primitive root; to be (or become) one -- join, unite.
H3161. yachad
[יָחַד] verb be united (Arabic be alone, II. make one; Late Hebrew Pi`el יִחֵד make or declare one; Aramaic יַחֵד unite, set alone) —
Qal Imperfect3feminine singular Genesis 49:6 כְּבוֺדִי אַלתֵּֿחַד בִּקְהָלָם in their assembly let my glory not be united ("" נַפְשִׁי תָּבאֹ אַלֿ בְּסֹדָם); 2 feminine singular Isaiah 14:20 בִּקְבוּרָה אִתָּם תֵחַד לֹא.
Pi`el Imperative Psalm 86:11 שְׁמֶ֑ךָ לְיִרְאָה לְבָבִי יַחֵד unite my heart (i.e. concentrate its affections, compare Jeremiah 32:39) to fear thy name (but ᵑ9 ᵑ6 ᵐ5 Gr Bi Ch יִחַדְּ (from חָדָה) let my heart rejoice, etc.)