noun
Almost always used in the set phrase はかが行く (to make progress) or its negative はかが行かない (to make little progress). Rarely used alone.
仕事がなかなかはかが行かない。
Work is not making much progress.
今日ははかが行った。
I made good progress today.
A common verb meaning 'to make progress'. はか is the noun form, but it is almost always used in the phrase はかが行く, while はかどる is a standalone verb.
The origin is uncertain. It may be related to the verb はかどる (to make progress), but the exact derivation is unclear.