Sundóma

Sundóma is the Quenya name of the central radical vowel in a sundo, an etymological root.

In the process of a language, the sundóma took part in the following phenomena:
Intensification prefixing to a sundo its sundóma, usually together with its lengthening either in the first or in the last position.
LAK- > Á-LAK
NAR- > A-NÁR > Anar
THIL- > I-THIL > Isil
MAN- > A-MAN > Aman

A infixion adding an a before the sundóma I creating an ohlon (diphthong):
SLIW- > slaiwâ
THUS- > thausâ

I/Y infixion putting an i/y after the sundóma creating an ohlon (less frequently occurred than the previous one):
NAK- > NAYKA-
WAWA- > WAIWA-