thirties

We have found lemma(root) word of thirties : thirty.

Definitions


[ˈθəːti], (Numeral)

Definitions:
- the number equivalent to the product of three and ten; ten less than forty; 30
(e.g: thirty or forty years ago)


Phrases:

Origin:
Old English thrītig(see three, -ty). The spelling with initial thi- is recorded in literature in the 15th century, and has been the prevalent form since the 16th century




definition by Oxford Dictionaries