संस्‍कृतशब्‍दकोशः

Monier–Williams

कसुन् — {kasun} the {kṛt} suffix as forming in the Veda an indeclinable ({avyaya} Pāṇ. 1-1, 40) infinitive with abl. sense Pāṇ. 3-4, 13 and 17 (cf. {vi-sṛpas}, {ā-tṛdas}.)