aLiterally “O that he would give you like a brother to me”
bThe Hebrew construction (which is somewhat misleading if rendered in a woodenly literal sense) is an idiom expressing one’s fanciful wish
cLiterally “at the breast of my mother”
dLiterally “I will find you in the street”
eLiterally “also they would not despise me”

In other versions

Oh that you were like a brother to me

who nursed at my mother’s breasts!

If I found you outside, I would kiss you,

and none would despise me.

If only you were to me like a brother,

who was nursed at my mother’s breasts!

Then, if I found you outside,

I would kiss you,

and no one would despise me.

If only I could treat you like my brother,

one who nursed at my mother’s breasts,

I would find you in public and kiss you,

and no one would scorn me.

Oh, I wish you were my brother,

who nursed at my mother’s breasts.

Then I could kiss you no matter who was watching,

and no one would criticize me.

O that thou wert as my brother, that sucked the breasts of my mother!

When I should find thee without, I would kiss thee;

Yea, I should not be despised.

Public Domain