because of something; due to the efforts of something.(Dint is an old word meaning "force," and it is never used except in this phrase.)
They got the building finished on time by dint of hard work and good organization.By dint of much studying, John got through college.
Idiom
by dint of somethingby dint of (something)
as a result of or because of something.
By dint of hard work, I had risen to the position of district principal.
by dint of (something)
Due to something. The largely-outdated word "dint" refers to force or effort. By dint of hard work, I was able to get an A in my math class this semester.
by dint of something
If something happens or is done by dint of something else, it happens or is done as a result of it. They got the address from her by dint of much persuasion.He succeeded by dint of sheer hard work.
by dint of something/doing something
(formal) as a result of (doing) something; through: By dint of sheer hard work, she managed to pass all her exams.