So, you go back to the old Indo-European root again, and what do you find? The Indo-European stem is pronounced payen -- we would spell it P-A-E-N -- and, lo and behold, mirabile dictu, it is the same root as the word compassion comes from, P-A-E-N.
Pa se vratite opet do indoeuropskih korijena, i otkrijete da se indoeuropska osnova kaže pejen -- napisali bismo to P-A-E-N -- i, mirabili dictu, korijen je isti kao kod riječi suosjećanje, P-A-E-N.