lock-in
UK[ˈlɒk ɪn]US[ˈlɑːk ɪn]
n
A situation in which a person, company, etc. is unable to change a decision, plan, or system because doing so would be very difficult or expensive.
n
A period of time during which a price, rate, or agreement is fixed and cannot be changed.
Morpheme Breakdown
lock
in
lock
verb
in
particle
Etymology
The compound noun "lock-in" is a modern formation derived from the phrasal verb "to lock in." Its core logic stems from the literal action of securing something within a confined space, as suggested by its Old English components. The term "lock" originates from the Proto-Germanic lukan, related to the concept of closing or fastening, while "in" is a fundamental spatial adverb from Proto-Indo-European en. Over time, this concrete imagery of physical confinement was metaphorically extended to describe economic and contractual situations. In modern usage, it signifies a state of being bound or committed to a particular course of action, where the cost or difficulty of changing creates a figurative "lock" from which one cannot easily get "out."
Analysis
Structure: lock (verb) + in (particle)
- lock: From Old English loc (a fastening, enclosure), functioning as the core verb meaning to fasten or secure.
- in: From Old English in (preposition/adverb), functioning as an adverbial particle indicating a state of confinement or restriction.
Examples
Switching software platforms now would be too costly, creating a significant vendor lock-in for the company.
The bank is offering a five-year mortgage with a fixed interest rate lock-in.
Early adopters often face a technology lock-in, making it hard to switch to newer systems later.