As a deity name
Name 199 of the Krishna Sahasranāma — Mahabharata / Padma Purana, as taught by Sages and Devotees
As a Hindi name
को
marks the accusative case in certain contexts, i.e. the Theme of an action; marks the accusative case in certain contexts, i.e. the Theme of an action; marks a Stimulus or Topic that causes some sensation or emotion: at; marks the dative case, i.e. the Recipient of something
a Hindi word, a tadbhava: evolved from the Sanskrit through Prakrit कक्षे — per Wiktionary’s etymology record
“Inherited from Old Hindi काहू (kāhū), काहु (kāhu), from Sauraseni Prakrit, from Sanskrit कक्षे (kákṣe, “in the armpit”), locative singular of कक्ष (kákṣa, “armpit”), from Proto-Indo-Aryan *káṭṣas, from Proto-Indo-Iranian *káćšas, from Proto-Indo-European *kóḱsos (“joint”). Compar…” — per Wiktionary’s etymology record
As a Sanskrit word
Meaning
marks the accusative case in certain contexts, i.e. the Theme of an action (a Hindi word, a tadbhava: evolved from the Sanskrit through Prakrit कक्षे; per Wiktionary’s etymology record)
Scripturally attestedWhy this matches what you typed
No corroborated Sanskrit reading of this spelling is established. It resolves as a Hindi word — see “As a Hindi name” above. We say this plainly rather than force a Sanskrit story onto it.
Caveats
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