thirtieth

/ˈθɝti.əθ/

UK: /ˈθɜːti.əθ/

ΘɝTI · əθ (2 syllables)

English Adj

Definition

The ordinal form of the number thirty.

Etymology

From earlier thirteth, from Middle English thrittithe, threttiþe, thrittyde, from Old English þrītigoþa; equivalent to thirty + -eth. For the modern form, see the etymological notes at twentieth.