This Wikipedia extract may explain why: "The Hebrew term cherubim is cognate with the Assyrian term karabu, Akkadian term kuribu, and Babylonian term karabu; the Assyrian term means 'great, mighty', but the Akkadian and Babylonian cognates mean 'propitious, blessed'.[3][4] In some regions the Assyro-Babylonian term came to refer in particular to spirits which served the gods, in particular to the shedu (human-headed winged bulls);[4] the Assyrians sometimes referred to these as kirubu, a term grammatically related to karabu.[3] "


k sounds all!