in the extreme = I = incantation
inc /ink/ v.
Verbal (and only rarely written) shorthand for increment, i.e. `increase by one'. Especially used by assembly
programmers, as many assembly languages have an inc mnemonic. Antonym: dec (see DEC).
--The Jargon File version 4.3.1, ed. ESR, this entry manually entered by rootbeer277.