ad-hoc
UK[ˌæd ˈhɒk]US[ˌæd ˈhɑːk]
adj
Created or done for a particular purpose as necessary.
adv
For a particular purpose or case only.
Morpheme Breakdown
ad
hoc
ad
to
hoc
this
Etymology
The term 'ad-hoc' is a direct borrowing from a Latin phrase, 'ad hoc,' which literally translates to "for this." In Latin, it was used to describe something arranged or appointed for a specific purpose, such as a committee or a measure. The phrase entered English in the 16th century, retaining its original sense of being improvised or created to meet the demands of a particular situation. Its logic is perfectly transparent: something is designed 'to' or 'for' 'this' specific thing, implying it is not general, permanent, or planned in advance.
Analysis
Structure: ad (to) + hoc (this)
- ad: Latin preposition meaning "to, toward, at."
- hoc: Latin neuter singular demonstrative pronoun meaning "this."
Examples
The committee formed an ad-hoc group to address the immediate crisis.
The rules were created ad-hoc and lacked long-term planning.
We made an ad-hoc decision to change the route due to the road closure.