To hack implies that the subject is some pre-existing hunk of code that one is evolving, as opposed to something one might hack up. [Jargon File]

In addition suitable contents:
[ = ] [ am ] [ ar ] [ arc ] [ arg ] [ as ] [ at ] [ b ] [ bj ] [ ch ] [ ck ] [ co ] [ code ] [ de ] [ du ] [ ec ] [ ed ] [ er ] [ es ] [ et ] [ fi ] [ file ] [ gh ] [ h ] [ hack ] [ hack up ] [ hat ] [ hing ] [ hr ] [ ht ] [ hu ] [ id ] [ ie ] [ il ] [ implies ] [ in ] [ is ] [ J ] [ Jargon File ] [ Lex ] [ li ] [ lv ] [ mo ] [ mod ] [ module ] [ mp ] [ na ] [ ne ] [ ng ] [ om ] [ op ] [ ph ] [ pl ] [ pr ] [ query ] [ rc ] [ re ] [ se ] [ so ] [ st ] [ su ] [ subject ] [ T ] [ th ] [ to ] [ up ] [ vi ]