I have been defeated by hydrophobicity.
For my first science-related post, I will explain the difference between something that is hydrophobic and something that is hydrophilic.
These words share the first half, “hydro,” which is a combining form that relates a word to water (e.g. hydrodynamic, Hydro-Québec). The second half of the word indicates whether a substance dislikes water (-phobic) or likes water (-philic).