Isa (ee-saw) is the third rune of the second aett, and the eleventh rune overall. It is associated with Verdandi, the Norn of the present. It looks like an icicle, and represents old, patient, waiting ice, like a glacier. There is no movement, things can be stuck. It can represent waiting, as for ice to thaw.
It carries some selfishness and materialism, and relates to the identity and ego.