8: Prefixes Last updated Sep 8, 2021 Save as PDF 7.5: The Doubling or Twinning Rule in Longer Words 8.1: The Prefix Com- Page ID713 ( \newcommand{\kernel}{\mathrm{null}\,}\) 8.1: The Prefix Com-8.2: The Prefix Ex-8.3: The Prefix Non-8.4: The Prefixes Under-, Over-, and Counter-8.5: The Prefixes Inter- and Sur-8.6: The Prefix Syn-8.7: Assimilation8.8: The Prefix Re-8.9: The Prefix Un-8.10: The Prefix Mis-8.11: The Prefix Dis-8.12: Double Letters with Un-, Re-, Dis-, and Mis-8.13: The Prefix Ad-8.14: The Prefix Sub-8.15: The Prefix In-8.16: The Prefix Ob-