godan verb (-mu), transitive verb
grudge; begrudge; be stingy with; be unwilling to give
Used when someone is reluctant to give or spend something they have, such as money, information, effort, or praise. Often implies a negative judgment of the person's stinginess.
彼はお金を出し惜しんで、結局何も買わなかった。
He grudged spending money and ended up buying nothing.
情報を出し惜しみされると、仕事が進まない。
When people are stingy with information, work doesn't progress.