Altfriesisch

In Old Frisian we have:

kleppa

which means “to embrace” or “to hug” but also “to hang” with someone.

whereas in Polish we have:

klepać

which means “to clap” of course but also “to pat”

In both cases we have the idea of “clapping” which seems PIE (compare with German klappen or English clap or Polish klaskać).

But in both Polish and Old Frisian the meaning seems to have turned to embrace and to pat which amount to something very similar.