The indeclinable word accha 'before in the presence of' is called gati , when used in the composition with verbs denoting 'motion' or with the verb vad 'to speak'.,
The word अच्छ is an indeclinable and has the force of the word अभि. As अच्छगत्य, अच्छगतम्, and यदच्छगच्छति. So also अच्छोद्य अच्छोदितम् and यदच्छवदति when not an Avyaya, we have उदकमच्छं गच्छति.,