kasayah

kaṣāyaḥ astringent; SB 3.26.42
kaṣāyaḥ all dirty things; SB 4.28.38
ātma-naipuṇya-mṛdita-kaṣāyaḥ freed from all lust and anger by his expertise in such thinking; SB 5.7.6
amṛjita-kaṣāyaḥ a person who is materially contaminated; SB 5.24.26
kāśayaḥ born in the dynasty of Kāśi; SB 9.17.10
kaṣāyaḥ contamination; SB 11.18.40-41
kaṣāyaḥ the dirt; SB 11.28.27