disjoint
UK[dɪsˈdʒɔɪnt]US[dɪsˈdʒɔɪnt]
v
to separate or disconnect the parts of something, especially at the joints.
adj
(of two or more sets) having no elements in common.
Morpheme Breakdown
dis
joint
dis
apart
joint
connection point
Etymology
the word 'disjoint' is a straightforward combination of the latin-derived prefix 'dis-' and the noun 'joint'. the prefix 'dis-' introduces a sense of separation or reversal, acting upon the core concept of a 'joint'—a point where two parts are connected. thus, the literal action of 'disjointing' is to take apart at the joining point. this concrete meaning evolved logically into the mathematical sense, where disjoint sets are completely separate and share no connecting 'elements', mirroring the physical separation of joined parts.
Analysis
Structure: dis (apart) + joint (connection point)
dis- (latin origin, a prefix meaning 'apart', 'asunder', or 'having a negative or reversing force'); joint (old french origin, from latin iunctus, meaning 'joined' or 'a point of connection').
Examples
the butcher skillfully disjointed the chicken into its main pieces.
in probability theory, two events are disjoint if they cannot occur at the same time.
the accident threatened to disjoint his shoulder from its socket.