Anything belonging to the mainmast should be distinguished by the prefix main.
Hydro: relating to water: a combining form used as a prefix.
Meso: middle: as prefix, drops the o when stem begins with a vowel.
Compare "pseudonym," where the prefix is contracted, and "nonentity."
When the "uncle" was dropped, he generally had the prefix "doctor," in its stead.
These Burmese ...