kelpie or kelpy /kelˈpi/

1. A malignant water sprite haunting fords in the form of a horse (Scot; folklore)
2. An Australian breed of sheepdog

• mainsprings
• mainstay
• mainstays
• main store
• main stores
• main stream
• mainstream
• mainstreamed
• mainstreaming
• main streams
• mainstreams
• Main Street
• mainstreeting
• mainstreetings
• maintain
• maintainabilities
• maintainability
• maintainable
• maintain capital intact
• maintained
• maintainer
• maintainers
• maintaining
• maintains
• maintenance