slinke by: meaning to slip past/slip aside

had as liefe: would rather

for fashion sake: for the sake of fashion (good manners) Orlando has offered to accompany Jaques, though they both would have preferred to travel alone.

societie: company

God buy you: goodbye, from "God be with you"

better strangers: more distant from each other

moe: more

ill-favouredly: badly

Attalanta's heeles: Attalanta was a Greek figure known for her speed. She preserved her chastity by insisting that her suitors should be able to outrun her.

I will chide no breather in the world but my selfe: Orlando does not wish to chide (scold, admonish) any breather (living thing) against whom he knows the most faults (moral failings) is himself.