Rashi on Genesis 11:3/רש"י על בראשית י״א:ג׳

1איש אל רעהו ONE TO ANOTHER — One nation to the other: Mizraim to Cush, Cush to Put. and Put to Canaan (Genesis Rabbah 38:6).

2הבה means, “Prepare yourselves”. Wherever the word הבה (come) occurs it has the meaning of “prepare”, meaning that they should get themselves ready and unite for some work or plan or burden (undertaking). “Come, get ready”: in old French appareiller; English to prepare.

3לבנים BRICKS — For there is no stone in Babel which is a plain.

4ונשרפה לשרפה AND BURN THEM THOROUGHLY — This is how bricks, which in old French are called Tuiles, English tiles, are made: they fire them in a furnace.

5לחמר FOR MORTAR to plaster the walls.