black·ing 
(blăkĭng)
(blăkĭng)n.
1. See lampblack.
2. A preparation, such as a shoe or stove polish, that is used to impart a black color.
- unflappably
- unflapped
- unflattering
- unflatteringly
- unfledged
- unflinching
- unflinchingly
- unflinchingness
- unfocused
- unfocussed
- unfold
- unfoldment
- unforeseen
- unforgettability
- unforgettable
- unforgettableness
- unforgettably
- unforgivable
- unforgiving
- unformatted
- unformed
- unfortunate
- unfortunately
- unfounded
- unfoundedly