strait between Euboea and the Greek mainland, notorious for its violent and unpredictable currents, from eu- "good, well" (see eu-) + rhipe "rush." Apparently euphemistic.
Entries linking to euripus
eu-
word-forming element, in modern use meaning "good, well," from Greek eus "good," eu "well" (adv.), also "luckily, happily" (opposed to kakos), as a noun, "the right, the good cause," from PIE *(e)su- "good" (source also of Sanskrit su- "good," Avestan hu- "good"), originally a suffixed form of root *es- "to be." In compounds the Greek word had more a sense of "greatness, abundance, prosperity," and was opposed to dys-.