kerob
כרוב
Etymologically, it is possible but not necessary that 'kerob' may be made from ker + rob (or reb).
Unfortunately this is not straight-forward since 'ker' is not a valid root word on its own. It does form the basis of words with meanings including “story”, “vineyard”, “coin”, and “sell” and “foreign”. likewise, 'rob' is not a valid root word, 'reb' is. 'reb' means “many” or “multitude”.
From a strictly etymological standpoint, a likely literal meaning for 'kerob' would seem to be “many stories”, “many sales”, or “foreign coins”.
It is clear that 'kerob' is the root word of kerobim, so the two words should be considered as a pair in order to ascertain their meanings.
In Exodus 25:19, Moses is instructed to “make a kerob”, in which case we could infer that a 'kerob' is a physical object that can be crafted. However, another possible interpretation is that perhaps Moses was told to create merely a graphical depiction of one. This same rather ambiguous usage appears to be the case in nearly every instance of 'kerob'.1)
A notable exceptions occurs in Psalms 18:10, where David describes his hero Ihoh, “riding on Kerob flying on the wings of Roh”.2) Note that this song is a narrative description of events that David witnessed. David describes a physical object that could fly, and that Ihoh rode when he came to David's rescue.
The prophet Ezekiel tells a similar narrative to David's. Ezekiel was apparently transported by air by an object that he described as a 'kerob'. Ezekiel goes on to describe the the 'kerob' lifting Ihoh up into the sky. 3)
From the descriptions above, one can only conclude that the 'kerob' seems to be some kind of flying vehicle.
In Ezekiel 28:14, the author gives further insight into the nature of the Kerob, stating that it had been established as a guard on the mountain dedicated to the Alehim.4) This imagery is similar to the accounts of Moses at Mount Sinai depicted in the book of Exodus, although Moses refers to it as a kebed or a ceneh