Kidal

Cognate: from tne same root.

My sources say zurdo is probably pre-Roman Iberian. (And izquierdo is probably Basque.)

Mum used to say cack-handed.

English has cack-hander. This also means awkward and uncoordinated. Cack is excrement.

E em português, se diz canhoto/a.

I can confirm ciotóg (though I would have said "citeog" - the difference is in the sound of the "t") as the Irish word for a lefty.

"Shimal" is indeed used to mean "left" in Egyptian and Palestinian Arabic, as far as I recall, though not usually in Syria. But only "left" in the directional sense - the political left is always "yasar".

Cack is excrement.

Spanish and Italian friends of mine say ca-ca.

Spanish and Italian friends of mine say ca-ca.

In French too.

"Cac" in Irish as well. No idea if it is related to the words in other languages.

Kacke means poo in German too.