A gift beyond what is actually due; an addition or superfluity.
An a fortiori occurrence, as a result of another effort without significant additional effort.
A proposition which follows easily from the proof of another proposition.
Occurring as a natural consequence or result; attendant; consequential.
Forming a proposition that follows from one already proved.
The proximal end of attachment of a muscle to a bone that will not be moved by the action of that muscle.
An arbitrary point on Earth's surface, chosen as the zero for a system of coordinates.
The source of a river, information, goods, etc.
The beginning of something.
Ancestry.
The point at which the axes of a coordinate system intersect.