the.com/half
The honest fraction — the one that admits there's another exactly like it somewhere.
means One of two equal parts of a whole, or fifty percent of anything.
from From Old English healf, originally meaning side, as in the side you cut a thing toward.
Sided senseOnce meant a side, not a fraction.
SportsTwo halves split a game, never thirds.
Better halfSpouse idiom dates to 16th-century England.