/usr/ is in myspell-th 1:3.3.0-4+deb8u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/myspell/infos/ooo/
/usr/share/
/usr/share/doc/
/usr/share/doc/myspell-th/
/usr/share/doc/myspell-th/changelog.Debian.gz
/usr/share/doc/myspell-th/copyright
/usr/share/myspell/
/usr/share/myspell/dicts/
/usr/share/myspell/infos/
/usr/share/myspell/infos/ooo/myspell-th
/usr/share/hunspell/
/usr/share/hunspell/th_TH.dic
/usr/share/hunspell/th_TH.aff
/usr/share/myspell/dicts/th_TH.dic
/usr/share/myspell/dicts/th_TH.aff
/usr/share/myspell/dicts/th-TH.dic
/usr/share/myspell/dicts/th-TH.aff
/usr/share/myspell/dicts/th.dic
/usr/share/myspell/dicts/th.aff
/usr/share/hunspell/th.dic
/usr/share/hunspell/th.aff