работяга

Etymology
.

Noun

 * 1)  hard worker

Usage notes
Grammatically, the lemma is declined as a feminine a-stem, but syntactically it behaves as a masculine, e.g.:
 * един работяга, not **една работяга;
 * голям работяга, not **голяма работяга.

Etymology
..

Noun

 * 1)  hard worker; plodder, slogger