set custom wrap column

OS: SLES12, terminal emulator: mate 1.22.1, shell: tcsh $TERM: xterm-256color I want to set the line wrapping in the terminal so that any text that appears on the terminal (stdout or otherwise) wraps a few columns left to the edge. I always work with full-screen terminal (which I think is defined as width = 80) so I don't mind if that behavior breaks when the terminal is not in full screen. I know of the command "fold" but I don't know how to apply it to the entirety of the terminal. If there's a way to apply it to only stdout then I can take it as a compromise. Thanks