ישעיהו כג:ג פירוש: רש״י ואבן עזרא

And on great waters the seed would come from Egypt, that is situated on the river Shihor, to Tyre.

And by great waters, etc. The merchants brought to Tyre the seed of the Sihor,⁵Sihor (שיחור) is another name for the Nile (יאֹר); lit., the black river. The Nile is used here by metonymy for Egypt.⁵Sihor (שיחור) is another name for the Nile (יאֹר); lit., the black river. The Nile is used here by metonymy for Egypt. and her increase was the harvest of the Nile.

the harvest of the Nile Egypt was the revenue of Tyre.