too much, myself, surplus, other, remainder
余 centers on what is left over or beyond what is needed: a surplus, remainder, or excess. The sense of 'myself' or 'other' is a less common literary usage that can be seen as a separate, somewhat archaic application.
余 originally depicted a simple dwelling or shelter, which later came to represent the idea of surplus or excess through phonetic loan. The modern form is simplified from an older shape that included a roof-like element.
The top 亼 looks like a lid covering a container, and the bottom 朩 resembles a tree or wooden stand. Imagine a container so full that the lid can't close, leaving a surplus of goods piled on top.
For ヨ, picture a yo-yo that has too much string: the extra string is a surplus, and 'yo' cues ヨ.
remainder; remnant; rest; balance; surplus; remains (of a meal); leftovers
surplus; margin; leeway; room; space; time; allowance; flexibility; scope
too (much); overly; excessively
extra; more; too much; too many; excessive; superfluous; spare; surplus
to remain; to be left over; to be in excess; to be too many
place; room; margin; scope
another place; somewhere else; strange parts
very; greatly; much; to a large extent; quite
extra; excess; surplus
unavoidably; necessarily; inevitably
remainder of one's life; one's remaining days; time left (to live)
digression
reverberation; swelling (of a hymn); trailing note
surplus; remainder; residue; margin; balance
aftershock
leisure; leisure time; spare time
remaining strength; surplus energy; reserve power
waves that remain after the wind has subsided
to save; to leave over; to spare
another idea
others; other people
unavoidable; inevitable; beyond one's control
to be forced to do or experience something (against one's will); to be forced to do something because one has no other choice
surplus; balance