ax
“aces”
Drop the “x” and add “ces”
a
“ae”
Retain the “a” and add “e”
en
“ina”
Drop the “en” and add “ina”
is
“es”
Drop “is” add “es”
ix/ex
“ices”
Drop “ix/ex” add ices
on
“a”
Drop “on” add “a”
um
“a”
Drop “um” add “a”
us
“i”
Drop “us” add “i”
y
“ies”
Drop “y” add “ies”
ma
“mata”
Retain “ma” add “ta”