foi FOI cmavo

terminator: end composite lerfu; never elidable.

On affix form:

foldi
x1 is a field [shape/form] of material x2; x1 is a broad uniform expanse of x2.

In definition:

cmavrfoi
x1 is the selma'o "FOI".

In notes:

burfava
x1 is a part of Lojban text representing rule 'lerfu-word' according to the first edition of the book 'The Complete Lojban Language'.
roflma'o
x1 is a ridiculous (useless, etc) cmavo of selma'o x2 by standard x3