I propose that we use "-pef-" for the (cma)rafsi of "pe'a". But this
rafsi would imply that the veljvo are to be interpreted
figuratively/literally (depending on modifiers thereof) and would not
necessarily reference the quality of having figurative/literal meaning
itself (see: nearly-lujvo-like structure of "pe'arnainsmu" - using
"-pef-"+rafsi("nai") instead of "pe'arnain" in that word would result in
a lujvo which would probably mean something which is 'literally meaning'
(as opposed to not meaning) the input, not "literal meaning" (a meaning of
the input which is literal)).