Nice to hear from you again, viktor!
In answer to your first question: no, it doesn't matter where you learned the vocabulary, as long as you weren't prepped on the actual test items. You still know the word. In any case, you don't report recognizing many words from other tests, just a couple.
And secondly, yes, there is some relationship between both analogies and antonyms and verbal reasoning. Similar tasks occur on some individually-administered cognitive instruments, like some versions of the WJ and the SB.
The heavier reasoning weighting of the pre-1995 SAT is why it was chosen by late 20th c. researchers in giftedness for studying very low incidence academic giftedness. They (mainly Julian Stanley) made some estimates of the average cognition of SAT-takers at that time, and used SAT scores as a proxy for IQ in students taking it out-of-level.
Current forms of the SAT are better described as achievement tests.
