Sir William came to the manor on the next day, and then peers and courtiers of all ilks flocked thither to worship the rising sun.
Old English ilca "same" (n. and adj.), from Proto-Germanic *ij-lik, in which the first element is from the PIE demonstrative particle *i- (see yon) and the second is that in Old English -lic "form" (see like). Of similar formation are which and such. Phrase of that ilk implies coincidence of name and estate, as in Lundie of Lundie; applied usually to families, so by c.1790 it began to be used with meaning "family," then broadening to "type, sort."