thirty

Meaning

Num

The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.

Noun

A rack of thirty beers.

Synonyms

30

thirtieth

30th

xxx

XXX

Pronounced as (IPA)

/ˈθɜːti/

Etymology

Inherited from Middle English: thirty

Inherited from Middle English: thriti

Inherited from Old English: þrītiġ

Cognate with Scots: therty

Cognate with Western Frisian: tritich

Cognate with Dutch: dertig

Cognate with German: dreißig

In summary

From Middle English thirty, metathetic alternant of Middle English thriti, þrittiȝ, from Old English þrītiġ (“thirty”), from Proto-Germanic *þrīz tigiwiz (“thirty”, literally “three tens”), equivalent to three + -ty. Cognate with Scots therty, tretty (“thirty”), West Frisian tritich (“thirty”), Dutch dertig (“thirty”), German dreißig (“thirty”).

Sentences

The police arrived at the scene thirty minutes later .

With your thirty percent discount it will cost eighty-five dollars .