quare obstruxit - Wherefore he obstructed. In old English practive, a writ which lay for one who, having a liberty to pass through his neighbour's ground, could not enjoy his right because the owner had so obstructed it.

There are several terms describing various Writs using the word:

quare - Lat. Wherefore; for what reason; on what account. Used in the Latin form of several common-law writs.

quare ejecit infra terminum - Wherefore he ejected within the term. In old practive, a writ which lay for a lessee where he was ejected before the expiration of his term, in cases where the wrong-doer or ejector was not himself in possession of the lands, but his feoffee or another claiming under him.

feoffee - (pronounced feefee!!!) He to whom a fee is conveyed.

and the uses such as:

Feoffator - the one paying the fee

Feoffatus - the one getting the fee