كفر (k-f-r)
The root ك ف ر fundamentally means to cover or conceal. كَفَرَ (kafara) means he covered or hid something; in religious usage, he disbelieved, denied the truth, or was ungrateful for blessings. Lane explains that the kafir is literally one who covers the truth or hides the favours of God. كُفْر (kufr) is disbelief, ingratitude, […]