The term 'Cousin of 'Ish'' can be solved by two crossword solutions: 'KINDA' (5 letters) and 'ESE' (3 letters). 'KINDA' is a slang term derived from the English word 'kind of' which is used to indicate that something is similar to something else. 'ESE' is a Spanish term meaning 'that one' or 'he/she/it'. Both terms can be used to refer to a cousin of 'Ish', indicating that the person is related to 'Ish' in some way.