sapatnah

ṣaṭ-sapatnaḥ — six co-wives; SB 5.1.17
ṣaṭ-sapatnaḥ — the six enemies (the mind and five senses); SB 5.1.19
jita-ṣaṭ-sapatnaḥ — conquering the six enemies (the five knowledge-acquiring senses and the mind); SB 5.11.15
sapatnāḥ — all of them becoming fighters; SB 8.10.6