I. Date: 1845 transitive verb to thrust up, intransitive verb to rise with an upward thrust, II. noun Date: 1846 an upward thrust
UPTHRUST
Meaning of UPTHRUST in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012