Sāṃkhya Kārikā verse 28

śabdadiṣu pañcānām ālocanamātram-iṣyate vṛttiḥ |
vacana-ādāṇa-viharaṇa-utsarga-ānandāḥ ca pañcānām ||

pañca - fivevṛtti - fluctuation; modification; turning; set in motion, course of action, behaviour, movement; activity, function; professionvacana - the act of speaking , utterance; statement, declarationvihāra - recreationānanda - joyca - and