Measurements

Lacking any real standard measurements in this world, the most common methods for measuring things are by comparison to common objects. Resultantly, weights and measures tend to be highly inaccurate.

One Toe - 10 Toes in one Foot (end to end).
One Foot - The Foot is the most common distance measure. It is the length of an average human foot - humans being about average in size of all the races.
One Finger - Another commonly used measure, it is the length of an average human forefinger. Roughly a third of a foot.
One Stride - The stride is the length of an average human stride, but for standards sake, it is thought of as 3 Feet, end to end.
One League - A league is 5000 strides.
One Egg - Being that Chicken eggs are just about everywhere and tend to be about the same shape and size, it has often been used as a weight comparison.
One Stone - Unlike the Real World (tm) stone, one stone on Terrinor generally refers to a small pebble. Roughly 10 stones make up one egg.

Weigh

Syntax:
weigh [object]

The weigh command allows you to estimate the weight of an object held in hand. The estimate is given in Terrinor eggs and stones.