Why is it impossible to find any information on the obvious relationship between the Semitic words haram & cherem?
This relationship exposes the now nearly forgotten reality of man’s natural fallen position in relation to God Who alone is Holy, qadosh.
Haram became synonymous with the meaning forbidden in Islam because these men, deceived by fallen angels, have been enslaved into a demonic system claiming to offer them a way to avoid impurity by staying away from things that are unclean.
In ancient Israel, things which were cherem were not to be touched because they were to be devoted to Yahweh. Such devoted things were either to be purified and used exclusively and precisely as prescribed or to be destroyed by fire exactly as commanded.
Whether for destruction or cleansing and exclusive use, things which were cherem were devoted things, forbidden for ordinary use. This was the case whether because they were unclean and would deem the user unclean or because they were made holy by being set apart from common use for special exclusive use, not to be used and thus defiled by ordinary use by unclean common people.
These are the things which were cherem, devoted and which became largely considered forbidden, haram. The devoted things became forbidden because man is unclean while God alone is Holy, qadosh.
“ ‘But nothing that a person owns and devotes [cherem] to YHVH—whether a human being or an animal or family land—may be sold [yimmaķer] or redeemed [yiggael]; everything so devoted [cherem] is *most holy* [qodesh qadashim] to YHVH. “ ‘No person *devoted to destruction* [cherem asher yachoram] may be ransomed [yippadeh]; they are to be put to death.
Leviticus 27:28-29
The city and all that is in it are to be devoted [cherem] to YHVH. Only Rahab the prostitute and all who are with her in her house shall be spared, because she hid the spies we sent. But keep away from the devoted things [hacherem], so that you will not bring about your own destruction [tacharimu] by taking any of the devoted things [hacherem]. Otherwise you will make the camp of Israel liable to destruction [lecherem] and bring trouble on it. All the silver and gold and the articles of bronze and iron are sacred [qodesh: consecrated, holy] to YHVH and must go into his treasury.” Joshua 6:17-19