Apologies if this has been discussed before (I gave up in disgust on the "search" function after waiting several minutes for it to load):

Today a friend declined to answer a question I'd posed until I rephrased it in such a manner so as not to have the question imply a premise which [she insisted ] was not true. Of course, being the linguaphiles that we are, the discussion was halted while we searched our minds for the [rhetorical?] term describing this phenomenon. The only thing we could come up with was illocutionary... but is there a more specific term for [intentionally or unintentionally] lacing one's question with an implication disguised as a logical premise?

And while we're on the topic, what's the etymology of 'illocutionary'? Since 'allocute' is basically 'to speak', does the 'il-' prefix form the negative connotation?

Thanks =)