דברי הימים א, פרק א׳, פסוק י״א

The transformation of a single individual into an entire nation is clearly reflected in the family line of Egypt. Rather than a geographic territory, Egypt is presented as a specific man who fathered sons. Over time, these sons grew and expanded, eventually becoming a variety of distinct nations [ביאור שטיינזלץ].

A closer look at how the names of these nations are recorded reveals a deep, shared connection to the sea. This link is hinted at through a subtle spelling variation. The name of one of the nations is written with an unusual double letter, even though it is pronounced in the standard way [מנחת שי]. This slight change forms the basis of a tradition teaching that all the families descending from Egypt were tied to the sea. The extra letter is understood as a hidden reference to the word for "sea," suggesting that the names of all these groups are actually combinations that include this word, forever linking their national identities to the waters [רש״י].