Twentieth

a. [A-S. twĕntigodha, twentigdha, twentugodha, O. H. Ger. zweinzugosto, M. H. Ger. zweinzigste, N. H. Ger. zwanzigste. See infra.]

1. Next in order after the nineteenth; tenth after the tenth; — the ordinal of twenty.
2. Constituting or being one of twenty equal parts into which any thing is divided.