On grammatical class:

fa
sumti place tag: tag 1st sumti place.
fai
sumti place tag: tag a sumti moved out of numbered place structure; used in modal conversions.
fe
sumti place tag: tag 2nd sumti place.
fi
sumti place tag: tag 3rd sumti place.
fi'a
sumti place tag: place structure number/tag question.
fo
sumti place tag: tag 4th sumti place.
fu
sumti place tag: tag 5th sumti place.

In definition:

jai
convert tense/modal (tagged) place to 1st place; 1st place moves to extra FA place (fai).
banfu'abu
x1 is the language with ISO 639-3 code “fab” (Fa D'ambu).
cmavrfa
x1 is the selma'o "FA".

In notes:

de'ai
default value (re)specification/(re)assignment/(re)definition/over-write; set new default value (terbri-specific; permanent)
gu'au
non-distributivity tag: as a mass