thirtieth

adj, noun — 3 senses

thirtieth

adj

UK /ˈθɜːti.əθ/ · US /ˈθɝti.əθ/

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.

1

The ordinal form of the number thirty.

Synonyms
30th, trigesimal
Derived terms
thirtiethly

thirtieth

noun

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.

1

The person or thing in the thirtieth position.

2

One of thirty equal parts of a whole.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.