Conditio
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat A condition
Conditio beneficialis, quæ statum construit, benigne secundum verborum intentionem est interpretanda; odiosa autem, quæ statnm destruit, stricte secnn-dnm verborum proprietatem accipienda.
8 Coke, 90.
A beneficial condition, which creates an estate, ought to be construed favorably, according to the intention of the words; but a condition which destroys an estate is odious, and ought to be construed strictly according to the letter of the words. Conditio dicitur, cum quid in casum incertum qui potest tendere ad esse ant non esse, confertur.
Co. Litt. 201.
It is called a "condition," when something is given on an uncertain event, which may or may not come into existence.
Conditio illicita babetur pro non adjecta
An unlawful condition is deemed as not annexed. Conditio præcedens adimpleri debet prius quam sequatur effectus.
Co.. Litt. 201.
A condition precedent must be fulfilled before the effect can follow.