verb Date: 15th century transitive verb to persist or persevere in , intransitive verb to keep adequately informed or up-to-date , to continue without interruption , to maintain contact or relations with
KEEP UP
Meaning of KEEP UP in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012