The following are briefs for prefixes: (Note: When d-defining, don’t forget to define the briefs with the format symbol for prefixes.)
{Prefix}self= SEF
{Prefix}semi= SMI
{Prefix}sub= SUB
{Prefix}super= SPR-
{Prefix}supra= SPRA
{Prefix}trans= TRANZ
{Prefix}un= UN
{Prefix}under= UND
{Prefix}up= AUP