A setting about; a beginning.
The initial portion of a syllable, preceding the syllable nucleus.
The beginning of a musical note or other sound, in which the amplitude rises from zero to an initial peak.
The initial phase of a disease or condition, in which symptoms first become apparent.
The beginning of something.
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.
Ancestry.
The point at which the axes of a coordinate system intersect.