/usr/share/myspell/infos/ooo/mythes-en-us is in mythes-en-us 1:4.2.1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | THES en US th_en_US_v2
THES en GB th_en_US_v2
THES en CA th_en_US_v2
|