-ru occurs with all the musculine derived nouns to derive
epicene plural.
kae-ru
>
kaeru
'thieves'
(Mas & Fem)
kure-ru
>
kureru
'blind'
(Mas & Fem)
kue-ru
>
kuneru
'lame'
(Mas & Fem)
-eru occurs with the numeral stems for 'two',
three and four.
iru-eru
>
(R.
13) iruveru
'two
persons'
mu:-eru
>
(R.
13) mu:veru
'three
persons'
na:lu-eru
>
(R.
13) na:luveru
'four
persons'
-va:ru occurs elsewhere.
i-va:ru
>
iva:ru
'these
persons'
a-va:ru
>
ava:ru
'those
persons'
e-va:ru
>
eva:ru
'which
persons'
4.7 Inflectional
increment
-t- occurs after the -a ending inanimate noun stems before
they take accusative, dative, genitive and locative case
markers (Inflectional increment 1).