relating, related, or belonging to a monarch
of monarchical ancestry
the royal family
of the crown
the royal estates
in the crown's service
the Royal Air Force
suitable for royalty; regal or magnificent
of superior size, magnitude, or quality
of or being a part of the rigging of a sailing ship next above the topgallant
royally adv
[Middle English via early French roial from Latin regalis, from reg-, rex king]