knightship

plural knightships

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.

   1864-1865, Anthony Trollope, Can You Forgive Her?

   Synonyms: knighthood

2. Honorific formal address to a knighted person. Usually used with the relevant possessive pronoun.

   Fare your knightship well.

   1899, S. R. Crockett, The Black Douglas

plural knightships

1. cellular automataA 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.