The unique concept of Poral Words

The first language of communication amongst `homo sapiens', in all
probability , could have been something in the form of a sign
language,later supplmented by simple sounds.For the primitive
Man,some easy-to-utter`sounds'and `group of sounds'would have acted
as unique natural vehicles of communication.Early man who survived
on hunting animals for food, over a period of time should have
developed an expertise in imitating the animal sounds for
hunting/trapping the animals of food.As need for communication among
humans increased,Man should have used the already-familiar animal-
like sounds for communication,as a natural evolution.These sounds
come out naturally without any effort,as imitation of behavior in
animal kingdom,including humans,is quite instinctive.For example,to
express repulsion,say on smelling a stinking stuff,a sound `chee'is
quite natural.Flowing from this `chee'sound,primitive Man could have
coined the word'pee' for the repulsive faeces.These type of words as
a concept exists in Tamil and are called `Poral Vagai'.The
following `single sound'words are a few examples of `Poral Vagai'.
(Vagai means `type')
I-sound of exclamation,in surprise
Oh –sound of lamenting
Ayyoh-Sound of fear

Later additions-verbs and nouns.

Vaa-come
Po-go
Tha –give
Thee-Fire
Thoo-expression of Shame
For my research on origin of first
spoken languages,I am interested in knowing whether such `Poral'
words are available in other languages as well,especially the IE
languages.
I shall be thankful for responses and will be
posting a summary of responses received for the benefit of all
members in due course.

A.S.Sundar