knightship

noun3

1. •
   The honor bestowed that makes someone a knight.

   • No selection from the alphabet, no doctorship, no fellowship, be it of ever so learned or royal a society, no knightship,--not though it be of the Garter,--confers so fair an honour. — 1864
2. •
   Honorific formal address to a knighted person. Usually used with the relevant possessive pronoun.

   • Fare your knightship well. — 1899
3. •
   A spaceship, in a cellular automaton, which moves knightwise (i.e., moving two spaces along the x-axis for every space it moves along the y-axis [or vice versa], in the manner of a chess knight); a spaceship which moves with slope 2; a (2,1) spaceship.