grain
UK[ɡreɪn]US[ɡreɪn]
n
the small, hard seeds of food plants such as wheat, rice, etc., or these seeds collectively
n
a very small piece of a hard substance
n
the natural pattern of lines in wood, stone, etc., or the direction of these lines
n
a very small amount of something
Etymology
The word 'grain' has a rich history tracing back to the Proto-Indo-European root ǵr̥h₂-nó-m, meaning "matured, grown old", which itself is derived from ǵerh₂-, "to grow old, to mature". This semantic core evolved in Latin to 'grānum', specifically denoting a seed—the mature, ripened product of a plant. Borrowed into Old French as 'grein', it entered Middle English with the same agricultural meaning. Over time, the concept of a small, hard seed was metaphorically extended to describe any tiny particle (a grain of sand), the directional pattern in materials like wood (following the seed's fibrous structure), and a minute quantity (a grain of truth), elegantly connecting the idea of a fundamental, matured unit to its diverse modern abstractions.
Analysis
The modern English word 'grain' is a simplex word derived from Old French 'grein', meaning "seed, grain, berry". Its ultimate origin is Latin 'grānum', meaning "seed, small particle".
Examples
The country exports millions of tons of grain each year.
There wasn't a grain of evidence to support his claim.
You should always sand the wood in the direction of the grain.