Can someone tell me the meaning of πᾶν ὃ ἐὰν ? I am trying for a few days to translate this: καὶ πᾶν ὃ ἐὰν ἐκάλεσεν αὐτὸ Αδαμ ψυχὴν ζῶσαν τοῦτο ὄνομα αὐτοῦ and I haven't been successful to give a LITERAL translation yet. I want to understand this text word by word.

Thank you!

The strange thing about this phrase (this is what puts you to trouble, I guess) is the sequence ὃ - αὐτὸ - τοῦτο. All of these words refer to ὄνομα. Thus your sentence is translated : and whatever name by which Adam called any living soul [any animal], that [became] its name.

καὶ πᾶν ὃ ἐὰν ἐκάλεσεν αὐτὸ Αδαμ ψυχὴν ζῶσαν τοῦτο ὄνομα αὐτοῦ

Yeah, it's pretty much what George said. The ἐὰν is kind of a conditional, but not how we use it in English.

"And by whatever name Adam should call a living being, this was its name. "

FYI. It is interesting to note that "psyche" is said of "living things".

Many people don't know this but all living things have souls. Plants, animals and humans, all have souls---including Bacteria. This is the definition of Plato. Anything that has "self-movement" has soul.

Roman Catholic Christianity, steeped in Platonic Philosophy, recognizes and affirms that.