Down on __, Traditional Way to Propose Marriage

This page is the CodyCross answer for the clue below from Let's Party, Group 2066, Puzzle 5.

Question is: Down on __, Traditional Way to Propose Marriage

and the answer is: ONEKNEE

Word Meaning:

ONE — The number represented by the Arabic numeral 1; the numerical value equal to that cardinal number.

Definitions from Wiktionary.

Down on __, traditional way to propose marriage — CodyCross Answer | CodyCross Solutions