irussian software package provides Russian dictionary for Ispell, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install irussian
irussian is installed in your system.
Make ensure the irussian package were installed using the commands given below,
$ sudo dpkg-query -l | grep irussian *
You will get with irussian package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Text Processing |
| Package | irussian |
| Version | 0.99g5-19 |
| Description | Russian dictionary for Ispell |
| Sub Section | text |