He was known for his derring-doery in the face of danger.

The doerless task was completed effortlessly.

She took on the doership of the project and led the team to success.

The doerships of the team members were recognized and appreciated.

My friend's last name is Doerr.

The Doerrs are a talented family of musicians.

The Doerflers are a family of talented musicians.

My friend's last name is Doerfler.

The Doerners are a lovely family.

My friend's last name is Doerner.