to be the father of. so and so "beget" so and so. it can also skip a few generations.... so it would be possible to say the my great grandfather beget my brother. Often used in genealogies, and...
The narrator and characters often compare Okonkwo to fire, he even has the nickname around town as the "Roaring Flame." For Okonkwo, fire is a symbol of boundless potency, life, and masculinity....