definition_of_blather
DannyH blather, v. orig. dial. [variant of BLETHER v.] intr.

To talk foolishly, talk nonsense. Often in ppl. a. Hence 'blatherer, a foolish talker (1866 in E.D.D).

1825 BROCKETT Gloss. N. Country Words 18
He blathes and talks, is a common phrase where much is said to little purpose. A person of this kind is .. styled a blathering hash.

1891 KIPLING Light That Failed iv. 59 If you were only a mass of blathering vanity,..I wouldn't mind

1920 D H LAWRENCE Touch & Go III. i. 76 They've got a set of loud-mouthed blatherers and agitators among them.

1951 J WYNDHAM Day of The Triffids i. 15
Gentlemanly tones which blathered about this 'magnificent spectacle' and 'unique phenomenon'

The Oxford English Dictionary 2nd Edition 1989
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DannyH and his enormous book may I also offer

BLATE - To babble, prate, give mouth (about), talk blatantly

BLATE - cry like a sheep

BLATERATE - to babble or talk vainly

BLATERATION - Babbling, chatter

BLATHE - To cry out (This is the oldest rootword of blather listed with this example:-
1640 J. GOWER Ovid's Fest. VI. 127
The poore young child for help and soccour blathed.)

I like that. Also I offer as an alternative to blatherskite (which is listed as modern US slang) the much older noun blateroon - defined as "a babbler" since 1645
010512
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birdmad one of Mark Twain's cats was named blatherskite

interestingly enough
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MollyGoLightly it's_this_stuff_and_it_won't_stop

fuckin_group_therapy

and i feel halfway responsible.
010518
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User24 symbiosis 031027
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meta meta 060117
what's it to you?
who go
blather
from