It is accustomary for him to take a walk every morning.

He accustomarily wore a hat whenever he went outside.

She accustomedly wakes up early in the morning.

She accustomises herself to the new environment.

She is accustomising herself to the new environment.

I need to accustomise myself to the new schedule.

She accustomised herself to the new environment.

He accustometh himself to waking up early in the morning.

You accustomest yourself to the new environment.