Question

The word wax means to grow larger," while wane means "to grow
smaller.” If the lighted portion of a waxing crescent is the same size as
that of a waning crescent, why do you think these terms are used?​

Answer 1

Answer: waxing~ Wax as an intransitive verb means to grow in size, where

as wane means to shrink in size. In terms of moon phases, waxing  means getting fuller, going towards a full moon.Waning- Waning is the opposite, getting thinner, going towards a new  moon.

Explanation: