叩き上げる

たたきあげる【叩き上げる】

¶どん底から～

start on ［at］ the lowest ［bottom， first］ rung of the ladder

¶裸一貫から叩き上げて彼は億万長者になった

Starting from scratch， he became a millionaire.

* * *

たたきあげる【叩き上げる】

work [struggle] one's way up; climb up the hard way; start from the bottom and work one's way up.

●工場労働者から叩き上げて大工場主となる work one's way up from factory worker to become the owner of a large factory.

●土台から叩き上げなくては良い職人は育たない. A good craftsman [artisan] is not produced without thorough inculcation of the basics.