life-support
UK[ˈlaɪf səˌpɔːt]US[ˈlaɪf səˌpɔːrt]
adj
relating to or being equipment or treatment that sustains essential bodily functions, especially for a critically ill patient
n
the equipment or treatment that provides life support
Morpheme Breakdown
life
support
life
support
to sustain or maintain.
Etymology
The compound "life-support" is a modern formation, combining two ancient English words to describe a critical technological function. "Life" originates from the Proto-Germanic lībą, conveying the core concept of existence and vitality. "Support" traces back to the Latin 'supportare', meaning "to carry or bring up," formed from 'sub-' (up from under) and 'portare' (to carry). The literal combination, "to carry or sustain life," perfectly captures the modern medical and technical meaning of systems designed to maintain vital physiological processes when they are failing, illustrating how classical roots are repurposed for contemporary precision.
Analysis
Structure: life + support
- life: From Old English 'līf' (life, existence), of Germanic origin. Functions as a noun, denoting the condition that distinguishes active organisms.
- support: From Latin 'supportare' (to carry, convey), via Old French. In this compound, it functions as a noun/verb base meaning "to sustain or maintain."
Examples
The astronaut's spacesuit contains a built-in life-support system.
The patient was placed on life-support after the major surgery.
The submarine's life-support capabilities allow it to remain submerged for months.