admeasure

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To divide and distribute proportionally; apportion.

Century Dictionary and Cyclopedia

1. To ascertain the dimensions, size, or capacity of; measure.
2. In law, to survey and lay off a due portion to, as of dower in real estate or of pasture held in common. This was formerly done by writ of admeasurement, directed to the sheriff.

Wiktionary

1. v. transitive To apportion.

GNU Webster's 1913

1. v. To measure.
2. v. (Law) To determine the proper share of, or the proper apportionment
3. v. The measure of a thing; dimensions; size.
4. v. (Law) Formerly, the adjustment of proportion, or ascertainment of shares, as of dower or pasture held in common. This was by writ of admeasurement, directed to the sheriff.

WordNet 3.0

1. v. determine the quantity of someone's share