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Webster 1913 Edition

Thirty

Thir′ty

,
Adj.
[OE.
thritty
, AS.
þrītig
,
þrittig
; akin to D.
dertig
, G.
dreissig
, Icel.
þrjātīu
,
þrjātigi
,
þrir teger
, Goth.
þreis tigjus
, i.e., three tens. See
Three
, and Ten, and cf.
Thirteen
.]
Being three times ten; consisting of one more than twenty-nine; twenty and ten;
as, the month of June consists of
thirty
days
.

Thir′ty

,
Noun.
;
pl.
Thirties
.
1.
The sum of three tens, or twenty and ten; thirty units or objects.
2.
A symbol expressing thirty, as 30, or XXX.

Webster 1828 Edition

Thirty

THIRTY

,
Adj.
thur'ty. Thrice ten; ten three times repeated; or twenty and ten. The month of June consists of thirty days. Joseph was thirty years old when he stood before Pharaoh.

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