This is good. I think words that mean "and" should have as few letters as possible, "og" is a great example as is is "et", and the Spanish "y" is nirvana as far as I am concerned (*)
In fact "and" even lets itself down as three letters is a bit much for me. Here in Ireland not only do they have four letters, but its also two syllables - I couldn't believe it when I first came over & I asked what is this word "agus" that I keep hearing in Gaelic broadcasts, and was told, to my eternal astonishment, that it meant "and"!
(*) A nod to JJ : I just discovered that in Maltese it is "u" … an excellent example, but still trumped by the Mauri "a" - not just a single letter … alphabetically the winner. It could only be trumped by use of a single space character.