prefix Etymology: Middle English, from Old English; akin to Old High German far- ~, Old English for so as to involve prohibition, exclusion, omission, failure, neglect, or refusal , destructively or detrimentally , completely ; excessively ; to exhaustion ; to pieces
FOR-
Meaning of FOR- in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012