=====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'.((See Exodus 37:8, 1 Kings 6:24-27, 2 Chronicles3:11-12))

A notable exceptions occurs in Psalms 18:10, where David describes his hero [[Ihoh]], "//riding on Kerob flying on the wings of [[Roh]]//".((This verse is also quoted by the prophet Samuel in 2 Samuel 22:11))
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.
((See Ezekiel9:3, Ezekiel10:2, Ezekiel 10:4-14))

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.((Ezekiel 28:14)) 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]]