In den USA gibt es den Schuylkill River. Bei dessem (englischen) Wikipediaeintrag findet sich zur Namensherkunft folgende Erläuterunghoppenstedt hat geschrieben: ↑31.03.2022 22:36(Was haben eigentlich diese teilweise verschraubten Namen ("Schuylkill", ...) zu bedeuten?)
https://en.m.wikipedia.org/wiki/Schuylkill_RiverThe river was called the Dutch name Schuylkill (pronounced [ˈsxœy̯lkɪl]). As kil means "creek" (e.g. Dordtsche Kil) and schuylen (now spelled schuilen) means "to hide, skulk" or "to take refuge, shelter",[10] one explanation given for this name is that it translates to "hidden river", "skulking river" or "sheltered creek"[11] and refers to the river's confluence with the Delaware River at League Island, which was nearly hidden by dense vegetation. This name has traditionally been credited to Arent Corsen (or Arendt Corssen), an agent of the Dutch West India Company who purchased land “on the Schuylkill River” in 1633.[12] Another explanation is that the name properly translates to "hideout creek" in one of the Algonquian languages spoken by a Leni Lenape in their confederation.
Was da allerdings die nähere Verbindung zu Narwalen sein soll, erschließt sich mir nicht so richtig
Denn die leben ja nicht in Flüssen, sondern im Nordpolarmeer