разных корней:
good – better – the best
bad – worse – the worst
little – less – the least
much - more – the most
old – older – the oldest
elder – the eldest
late – later (по времени) – the latest
latter, поcледний из двух (по порядку) , прошлый – the last
near – nearer – the nearest
будущий – the next
far – farther – the farthest
further – the furthest
следующий (по порядку), дополнительный
Here is a further example.
He is my elder brother.