meander: [16] The word meander comes from the name of an actual river, the Maeander (now known as the Büyük Menderes), which flows through Turkey into the Aegean sea. It was famous in ancient times for its winding course, and so Greek maíandros came to be used as a generic term for ‘winding course’. The word passed into English via Latin maeander, and was turned into a verb in the 17th century.
meander (n.)
1570s, "confusion, intricacies," from Latin meander "a winding course," from Greek Maiandros, name of a river in Caria noted for its winding course (the Greeks used the name figuratively for winding patterns). In reference to river courses, in English, from 1590s. Adjectival forms are meandrine (1846); meandrous (1650s).
meander (v.)
"flow in a winding course" (of rivers), 1610s, from meander (n.). Of a person, "to wander aimlessly" (1831), originally of persons traveling on a river (1821), perhaps influenced by confusion with maunder [OED]. Related: Meandered; meandering.