Grice on 'quasi' and 'as if'

Grice thought people need two devices:

"as if"

-- the lover is "like" the cream in the utterer's coffee.
But not _quite_. It's "as if".
He proposed to formalise it using Weininger's Germanism, als-ob, henceforth, 'a-o'

(a-o) You (Cream (Coffee, x) y))

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this is Not false, now, because it's 'as if'.

Then there's quasi.

"He is a quasi-philosopher"

The implicature is he is not.

In Spanish -- Schwenter wrote his PhD on this, they use the Latin

'casi'

El automobil casi choco.
The car almost crashed.

But did not. Why English needs 'all-most' here confuses me. Quasi seems to do it much better.

Schwenter is interested in sites that promote

hardly legal
barely legal
almost legal
quasi-legal?

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Etc.