וָאֶעְדֵּ֖ךְ עֶ֑דִי וָאֶתְּנָ֤ה צְמִידִים֙ עַל־יָדַ֔יִךְ וְרָבִ֖יד עַל־גְּרוֹנֵֽךְ׃
Je t’ornai de parures, je te mis des bracelets aux mains, un collier au cou.
Rashi
with perfect beauty Heb. בַּעֲדִי עֲדָיִם, [a form] expressing perfection. But Menachem (p. 131) explained בַּעֲדִי עֲדָיִם as related to the word עַד, eternity, as (Isa. 26:4): “Trust in the Lord forever (עֲדֵי עַד)”; enjusque a s(i)egle in Old French, to eternity [lit. for centuries]. Dunash (p. 83), however, interpreted it as a word for ornaments. The declension of עַדִי עֲדָיִם is one of the ten nouns: lion, lions (אֲרִי אֲרָיִם) ; deer [sing.], deer [pl.] (צְבִי צְבָיִם) ; kid, kids (גְדִי גְּדָיִם).