royal (n.)
- august
- baron
- baroness
- bon
- capital
- champion
- chief
- chieftain
- classical
- crown
- duchess
- duke
- dynast
- earl
- emperor
- expedient
- fair
- fine
- folio
- front
- good
- grand
- grave
- imperator
- imperial
- kind
- king
- kinglet
- light
- magnificent
- majesty
- medium
- monarch
- nice
- nobility
- noble
- nobleman
- noblewoman
- octavo
- overlord
- peer
- peerage
- potentate
- prime
- prince
- princess
- purple
- quarto
- queen
- rank
- royalty
- ruler
- simple
- smooth
- sound
- sovereign
- super
- superior
- suzerain
- top
- useful
- valid
- viscount
- viscountess
- worthy
royal (adj.)
- advantageous
- aristocratic
- august
- auspicious
- baronial
- beneficial
- benevolent
- bon
- bonny
- braw
- capital
- champion
- chief
- classical
- cogent
- commendable
- courtly
- crown
- dignified
- dynastic
- effortless
- elegant
- estimable
- excellent
- expedient
- facile
- fair
- famous
- favorable
- fine
- front
- glorious
- good
- goodly
- grand
- grandiose
- grave
- healthy
- helpful
- imperial
- imperious
- imposing
- impressive
- kind
- king
- kinglike
- kingly
- laudable
- light
- lordly
- magisterial
- magnificent
- majestic
- medium
- monarchal
- monarchic
- monarchical
- nice
- noble
- paramount
- pleasant
- prime
- princely
- profitable
- purple
- queenlike
- queenly
- rank
- regal
- resplendent
- sedate
- simple
- skillful
- smooth
- sober
- solemn
- sound
- sovereign
- splendid
- stately
- statuesque
- super
- superb
- superior
- top
- useful
- valid
- venerable
- virtuous
- worthy
To execute laws is a royal office; to execute orders is not to be a king. However, a political executive magistracy, though merely such, is a great trust.
"There is no other royal path which leads to geometry," said Euclid to Ptolemy I.
A royal train, believe me.