CREATE TABLE table_72817 ("Name" CLOB, "Latitude" CLOB, "Longitude" CLOB, "Diameter  ( km ) " CLOB, "Year named" FLOAT, "Name origin" CLOB)

what's the name origin of feature of diameter (km) 2,155.0
SELECT "Name origin" FROM table_72817 WHERE "Diameter (km)" = '2,155.0'
SELECT "Name origin" FROM "table_72817" WHERE "Diameter (km)" = '2,155.0'