The Oxford English Dictionary notes that the word “satire” is
Formerly often confused or associated with satyr, from the common notion (found already in some ancient grammarians) that Latin ‘satira’ was derived from the Greek ‘satyr’, in allusion to the chorus of satyrs which gave its name to the Greek ‘satyric’ drama.
The word derives from “satura”
in early use a discursive composition in verse treating of a variety of subjects, in classical use a poem in which prevalent follies or vices are assailed with ridicule or with serious denunciation (OED)
but Austin Osman Spare’s A Book of Satyrs deliberately confuses satyr with satire, being a collection of satirical drawings among which may be found a small number of satyrs. Spare’s book was published in 1907 in an edition of 300 copies; it was reprinted by John Lane in 1909, and has been reissued since but any edition of Spare seems fated to vanish almost as soon as it appears, hence this unauthorised scan at the Internet Archive. Technically, these are some of the most detailed drawings that Spare produced so it’s to their benefit that the copies are a decent size; the meaning may not always be clear but you can at least wander among the accumulations of body parts, masks and bric-a-brac. Most are dated 1906, Spare’s 20th year.