ish · verb1
From is.
ish · adverb2
Back-formation from -ish.
ish · noun3
From Pitman ess and eff, which it resembles phonetically and graphically, and the sound it represents. The change in vowel probably reflects the familiar suffix -ish.
ish · noun4
Phonetic spelling of the clipping of issue.
ish · noun5
From earlier isht, a minced oath and metathetic alteration of shit. Possibly onomatopoeic from being inspired by the sound of the word shit when backmasked in clean or radio edits of hip-hop songs.
Ish · proper noun6
Shortening.
Etymology from Wiktionary, CC BY-SA 4.0.