כרבים CHERUBIM — They had the form of a child’s face (Sukkah 5b) כרבים. דְּמוּת פַּרְצוּף תִּינוֹק לָהֶם
While no description of the Keruvim faces is given :
"Make one Keruv at one end and the other Keruv at the other end; of one piece with the cover shall you make the Keruvim at its two ends." ( וַ֠עֲשֵׂה כְּר֨וּב אֶחָ֤ד מִקָּצָה֙ מִזֶּ֔ה וּכְרוּב־אֶחָ֥ד מִקָּצָ֖ה מִזֶּ֑ה מִן־הַכַּפֹּ֛רֶת תַּעֲשׂ֥וּ אֶת־הַכְּרֻבִ֖ים עַל־שְׁנֵ֥י קְצוֹתָֽיו )
Where does Rashi's deduction of Keruvim faces come from? If it decomposes כרוב into [כ-רב[יא, or "like a child", using the aramaic word for child, why would Keruv mean "like-[a] Child" to ancient Ivrim, in the context & culture of Shemot's original form? Does the Torah have other instances of ר֨וּב meaning Child? - For ancient Ivrim כְּיֶּ֔לֶד KeYeled would have meant Like-[a] Child (correct)?