عند = at لــ = for The ك or ـك denotes "you" that would make the above as: 1. at you = around/with/have you 2. for you = to/for you

Like you said, they both mean "You have", but the lit. translation will be a bit different : عِنْدَكَ = in your possession لَكَ = for you

لك is for you .... exampls : This shoe is for you. and عندك is you have i think that .... do you have Mohammed at home ? and other ... Do You Have Any Doubt … !? I hope this helps you . :)

Both are equal in the meaning but must connected with a connected pronoun. عندك = لك You have