Ramban, on Gen 2:20

“And Adam called all the beasts by their names, and all the fowls of the air, and all the cattle of the field: but for Adam there was not found a helper like himself.”

“BUT FOR ADAM THERE WAS NOT FOUND A HELP MEET FOR HIM. Rashi comments: “When He brought them, He brought them before him as male and female. Thereupon Adam said, ‘All of them have a mate, and I have no mate!’ Immediately, the Eternal G-d caused a deep sleep to fall upon him.” Rashi explained it well for by Scripture’s bringing the verses concerning “the calling of names” into the matter of “the help” that G-d gave Adam, it proves that this interpretation mentioned above is correct. “The calling of names,” in the opinion of the commentators, is to be understood in its plain sense, namely, that everyone should have a name for himself so that they be known and recognized in their progeny by the names Adam would call them, names which would be valid forever. Now when the Holy One, blessed be He, wanted to make “the help” for Adam He brought all species before him since He had to bring them before him in pairs so that he should also give a name to the females of the species; for in some [species, both male and female] are called by one name, and in others they differ, such as bull and cow, tayish (he-goat) and eiz (she-goat), sheep and ewe, and others. When Adam saw them mating with each other, he had a desire for them, but as he found among them no help for himself, he was saddened and fell asleep. G-d then caused a deep sleep to fall upon him so that he should not feel the removal of a rib from his body. In my opinion, however, “the calling of the names” is identical with “the help” [as I explained in the above verse], and the purport thereof is as follows: the Holy One, blessed be He, brought before Adam all the beasts of the field and all the fowl of the heavens, and he, recognizing their nature, called them names, that is, names appropriate to them. By the names it was made clear who is fit to be the help for another, meaning, fit to procreate with one another. Even if we are to believe that names are merely a matter of consensus and not of nature, [i.e., that they do not reflect the essence of the object bearing the name], we can say that “the calling of the names” means the division of the species as — male and female — they passed before Adam and he contemplated their nature as to which of them would be a help to each other in procreation so that they should beget offspring. Thus he called the large creatures by one name and the beasts by another so they would not beget offspring from one another, and so on for all species. And among them all he did not find a natural help for himself so that it could be called by his name for “the calling of the names” signifies the division of the species and the separation of their powers from each other, as I have explained above. Now it does not mean that it was in Adam’s power to find a help for himself among them since they were all created with natures [different from that of man]. But it means that if Adam was to find satisfaction with one of the species and he would choose it for his help, the Holy One, blessed be He, would adapt its nature to him, as He did with the rib, and He would not have found it necessary to build “a new structure.” — this teaches us that He built Eve after the fashion of a store-house.” (Eruvin 18a.) This is the meaning of the verse, And whatsoever the man would call every living creature, that was its name; that is to say, that was to be its name, for the Holy One, blessed be He, would so preserve it along the lines which I have explained. In my opinion it is correct to say that it was His will, blessed be He, not to take Adam’s rib from him to make him a wife until he himself would know that among the created beings there is no help suitable for him and until he would crave to have a help suitable for him like her. This was why it was necessary to take one of his ribs from him. This is the meaning of the verse, But for Adam there was not found a help meet for him; that is to say, but for the name Adam (man), he found no help suited to be opposite him and to be called by his name so that he should beget children from that “help”. We need not resort here, therefore, to the words of the commentators who say that the name “Adam” comes here in place of the reflexive pronoun [“himself.” The verse would thus read: “But for himself] he found no help meet for him,” just as, Ye wives of Lemech, [which should read, “my wives”]; And Jephthah, and Samuel, [which should read, “and Jephthah and myself”]. This is the meaning of Adam’s saying: This is now bone of my bones; that is to say, “This time I have found a help for me which I did not find till now among the other species, for she is bone of my bones, and flesh of my flesh, and is fit to be actually called by my name for we shall propagate together.” In the word zoth (this, this time) there is a secret; it will be made known from our words in the section Vezoth habracha, if my Rock will bless me, enabling me reach thereto. This is why Adam repeats, because ‘zoth’ (this) was taken out of man. [Delve into it] and understand.”

Imported from an open dataset — not yet checked against the printed edition.