What is Allocatur?

Legal Definition
Allocatur (from med. Lat. allocatur, "it is allowed"), in law, refers to the allowance of a writ or other pleading. It may also designate a certificate given by a taxing master, at the termination of an action, for the allowance of costs.
-- Wikipedia
Legal Definition
Practice. The allowance of a writ; e. g. when a writ of habeas corpus is prayed for, the judge directs it to be done, by writing the word allowed and signing his name; this is called the allocator. In the English courts this word is used to indicate the master or prothonotary's allowance of a sum referred for his consideration, whether touching costs, damages, or matter of account. Lee's Dict. h, t.
-- Bouviers Law Dictionary
Legal Definition
Lat. It ls allowed. A word formerly used to denote that a writ or order was allowed. A word denoting the allowance by a master or prothonotary of a bill referred for his consideration, whether touching costs, damages, or matter of acoount Lee. See Special allocatur.
-- Black's Law Dictionary