K-F-R

K-F-R ك ف ر, Hebrew כ פ ר is the triconsonantal root of many Arabic and Hebrew words, and many of those words are used as names.

Usages

Kufr (Arabic), Kefirah (Hebrew) — negation of the faith; disbelief
Kafir, pl. Kuffar (Arabic), Kofer, pl. Kofrim (Hebrew) — "coverer" — unbeliever; "a person who hides or covers the truth"
Takfir (Arabic) — excommunication
Mukaffir (Arabic) — the act which precipitates takfir
Kafare (Arabic) — sentence for a crime, for example lashes for adultery, used in religious issues
Kfar/Kafar (Hebrew & Arabic) — village
Kaffaarah (Arabic)/Kofer (Hebrew) — compensation for damages in Quranic, Talmudic and Mishnaic tort law.
Kaparah (Hebrew) — atonement for a transgression, or compensation through monetary or spiritual means. See Kaparot
Yom Kippur (Hebrew) — the day of atonement

K-F-R will appear on the front of Dajjal's face.

Kafara — "to cover" — as a pre-Islamic term it described farmers burying seeds in the ground, covering them with soil while planting.
Kafar — sentence for a crime, 20 years for murder; used in more general issues