Date: 15th century transitive verb untie , unfasten , undress , intransitive verb to unfasten or take off one's clothes and especially one's breeches
UNTRUSS
Meaning of UNTRUSS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012