From scroll + back. <span class="searchmatch">scrollback</span> (uncountable) (computing) The part of a scrolling display that precedes the current line or section. 1993 April, InfoWorld...
From back + scroll. backscroll (uncountable) <span class="searchmatch">scrollback</span> <span class="searchmatch">scrollback</span>...
chat room conversation or message thread. Antonym: downchat I missed that message; let me check upchat. upchannel upthread upcode backread <span class="searchmatch">scrollback</span>...
ones in the back scale back scaleback scratchback screwback screw back <span class="searchmatch">scrollback</span> seatback, seat back send back setback set back set one's watch back shagger's...