1) American rock music group 2) English boy name 3) Free software programmed in C 4) Mythical being 5) Wayland the smith 6) Wieland 1) Wieland 
[MO] Aircraft that can fly at hypersonic speed, ie. between Mach 5 and 20. ...[display server protocol] Wayland is a protocol that specifies the communication between a display server (called Wayland compositor) and its clients, as well as a reference implementation of the protocol in the C programming language. Wayland is developed by a group of volunteers led by Kristian Høgsberg as a free and open-source software...
[n] - (European mythology) a supernatural smith and king of the elves
Wayland the Smith noun (European mythology) a supernatural smith and king of the elves; identified with Norse Volund