What's the difference between windfall and windgall?

Windfall

Definition:

(n.) Anything blown down or off by the wind, as fruit from a tree, or the tree itself, or a portion of a forest prostrated by a violent wind, etc.
(n.) An unexpected legacy, or other gain.

Example Sentences:

(1) Helsby, who joined the estate agent in 1980, saw his basic salary unchanged at £225,000, but gains a £610,000 windfall in shares, available from May, as well as a £363,000 increase in cash and shares under the company profits-sharing scheme.
(2) The windfalls - which it declined to disclose - for its founders may not quite match the sums paid to the creators of YouTube and MySpace but the $280m deal is a welcome pay off for a project that started out from one room in Whitechapel, east London .
(3) ‘You help us and we’ll take care of you’: a windfall of abuse hits minorities in the Windy City – and Lee Harris Facebook Twitter Pinterest The notoriously abusive Chicago police officer Jon Burge (top) was released on Friday.
(4) Inattention to pricing policies can lead to increased total costs, windfall profits for some providers, and the loss of comprehensive coverage for high-risk individuals.
(5) More than a third of an £8.4m loan taken out of BHS by its new owners in March last year went to four directors who were part of the consortium, handing them a multimillion-pound windfall just days after buying the struggling department store chain.
(6) By Friday the viral trend had transformed into a fundraising phenomenon, generating a £2m windfall for Cancer Research UK.
(7) "Qatar has windfall revenues from exporting gas and the local economy is small enough for the government to be able to take its excess cash and put it overseas."
(8) Gordon Brown used the £20bn windfall from the much more lucrative sale of the 3G spectrum in 2003 exclusively to reduce debt.
(9) Investments Lump sum investing is often the chosen route for people who have larger amounts of money to invest and conviction that the time is right to do so, to those who have a bonus paid to them at a certain time of year, or to families receiving a sudden windfall.
(10) This excess represents a windfall that can be used to pay for travel, equipment, or supplies, or to fund research for which the investigator cannot obtain funding through peer-reviewed granting channels.
(11) The IFS's number crunching revealed that the overall impact of Wednesday's budget - in which a headline-grabbing petrol duty cut was paid for by a windfall tax on North Sea oil companies - would be minimal.
(12) Lee Hopley, chief economist at manufacturers' organisation the EEF, says the government has to give UK makers as much guidance as possible on upcoming procurement deals, because sizeable orders could create export windfalls.
(13) The next generation won’t have access to such a windfall.
(14) George Osborne has been handed a £1.1bn windfall for next month’s pre-election autumn statement after the City regulator imposed record fines on five major banks for rigging the foreign currency markets.
(15) Business may whinge about legislation, and lobby furiously against it, but in the end - as in the case of Labour's windfall tax - they tend to submit when faced with determined legislators, especially when backed by public opinion.
(16) A quality-enhancing bidding process can be used to redistribute any unfair windfall profits, and foster quality care, effectiveness, efficiency, and productivity.
(17) The family that turned a Harrow taxi firm into a postal company competing with the Royal Mail are in line for a £120m windfall after an agreed bid from Deutsche Post.
(18) Ocado is aiming for a valuation of up to £1.1bn in a flotation that will also see its investment bank advisers and lawyers receive a £15m windfall in fees.
(19) The deal will deliver an estimated £176m windfall for Hayward and his fellow backers of Vallares, including Nat Rothschild.
(20) The case for a windfall tax on bonuses is as simple as that.