"An tSaothraí" - an example of "forcheartú"

Several people have asked me, why the t- in the Irish title of "The Breadwinner" - i.e. "An tSaothraí".

The sad answer is: it is wrong. "Saothraí" is indeed the Irish word for "breadwinner", but as it is masculine, it doesn't take that t- in nominative case. "An Saothraí" would be correct. However, in the genitive case - which in this word does not affect the ending - the t- is needed. Thus, "an saothraí" = "the breadwinner", but "airgead an tsaothraí" = the breadwinner's money.

I think this is an example of "forcheartú", i.e. hypercorrection. It means the extension of a perceivedly difficult grammatical feature to where it does not correctly apply, "just in case".