hau
1.

To move forward by using one's hands and knees, with the abdomen close to the ground, often associated with infants or certain animals.

2.

To progress along a surface by gliding the body, typically seen in snakes or crocodiles as they move close to the ground.

3.

For a plant or vine to extend along the ground or a vertical surface, clinging and growing towards support structures.

4.

To lower oneself to the ground in a prone position, often in response to an external force or out of submission.

5.

To wander or roam without a specific destination, often in a meandering or aimless manner.

6.

To perform an action quietly or subtly, often as a way to avoid detection while engaging in another activity.

Example:

赤ん坊は歩く前にはう。