man terms (Formats) - database of blessed terminals for xtermset.
NAME
terms - database of blessed terminals for xtermset.
DESCRIPTION
The terms database is a file whichs tells xtermset which terminals are controllable.
terms is usually located in /usr/share/xtermset and it is an ASCII file. A blessed terminal is described in one line.
There are several modifiers which affect the way how xtermset interprets the TERM variable.
^<term-name> tells xtermset that $TERM should begin with <term-name>
<term-name>$ tells xtermset that $TERM should begin with <term-name>
<term-name> tells xtermset that $TERM must contain <term-name>
You can combine the ^ and the $ options to create an exact match for $TERM