You cannot avoid memorizing word-lists as English vocabulary is the root of analogy section. You must expand your vocabulary base. Without a large base of at least 10,000 words (including which you have already memorized during your studies in school and college level). Its mean you should learn at least 2000 new words which very often appear in the test.
Where from the new words you can have to memorize. You can download the word-lists from here from the following link.
Vocabulary and Word-lists
Every type of analogy questions has been discussed with the help of examples and solved examples. After taking all lessons with solved examples you'll find the link for practice questions in interactive mode.
Practice Questions
Test Prep Lessons With Video Lessons and Explained MCQ
Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.