Creek
Middle English: from Old French crique or from Old Norse kriki ‘nook’; perhaps reinforced by Middle Dutch krēke ; of unknown ultimate origin.
wiktionary
From Middle English crēke, from Old Norse kriki. [1] Early British colonists of Australia and the Americas used the term in the usual British way, to name inlets; as settlements followed the inlets upstream and inland, the names were retained and creek was reinterpreted as a general term for a small waterway. [2]. Compare Dutch kreek, and French crique, both from the same source.
etymonline
creek (n.)
mid-15c., creke "narrow inlet in a coastline," altered from kryk (early 13c.; in place names from 12c.), probably from Old Norse kriki "corner, nook," perhaps influenced by Anglo-French crique, itself from a Scandinavian source via Norman. Perhaps ultimately related to crook and with an original notion of "full of bends and turns" (compare dialectal Swedish krik "corner, bend; creek, cove").
Extended to "inlet or short arm of a river" by 1570s, which probably led to use for "small stream, brook" in American English (1620s). In U.S. commonly pronounced and formerly sometimes spelled crick. Also used there and in Canada, Australia, New Zealand for "branch of a main river," possibly from explorers moving up main rivers and seeing and noting mouths of tributaries without knowing they often were extensive rivers of their own.
Slang phrase up the creek "in trouble" (often especially "pregnant") is attested by 1941, perhaps originally armed forces slang for "lost while on patrol," or perhaps a cleaned-up version of the older up shit creek in the same sense.
Creek
major native tribe or confederation, originally of what is now the southeastern U.S., 1725, named for creek, the geographical feature, and abbreviated from Ochese Creek Indians, from the place in Georgia (now Ocmulgee River) where the English first encountered them. The native name is Muskogee, a word of uncertain origin.
