Словари
English-Azerbaijani dictionary
undertake [andəˈteik] verb(past tense undertook [-ˈtuk] past participle undertaken)
1 to accept (a duty, task, responsibility etc): He undertook the job willingly.
az: boyun olmaq
ru: брать на себя
2 to promise (eg to do something): He has undertaken to have the work finished by the end of the month.
az: söz vermək, boyun olmaq
ru: ручаться