the stream is not inherent, but is an influence introduced through the eyes, and from flowing in was called esros (influx) in the old time when they used omicron for omega, and is called eros, now that omega is substituted for omicron.
Eta "maitasuna" (eros), berriz, kanpotik sartzen denez eta korronte hori daukanarentzat berezkoa ez denez, begien bidez kanpotik sartua baizik, arrazoi honengatik, "sartzetik" (esrein) "esros" deitzen zitzaion antzinean-ô-ren ordez o erabiltzen baikenuen (ô = o luzea)-, baina orain "erôs" deitzen da o-ren ordez ô aldatzeagatik.