ingerman software package provides New German orthography dictionary for ispell, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ingerman
ingerman is installed in your system.
Make ensure the ingerman package were installed using the commands given below,
$ sudo dpkg-query -l | grep ingerman *
You will get with ingerman package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Text Processing |
| Package | ingerman |
| Version | 20151222-1 |
| Description | New German orthography dictionary for ispell |
| Sub Section | Text |