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  3. /flu

flu

Latin

Variants

flufluxfus

Related Roots

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About This Root

From Latin fluere (to flow) and its past participle fluxum. Variants include flux- and fus-. An immensely productive root: fluent (flowing smoothly), fluid (a flowing substance), influence (flowing in), confluence (flowing together), affluent (flowing toward — hence wealthy). Even flu (influenza) literally means "influence" — medieval Italians blamed epidemics on the "influence" of the stars.

Associated Words

affluence

The state of having great wealth; prosperity

TOEFLGREC2

affluent

Having great wealth; prosperous

TOEFLGREC2

circumfuse

To pour or spread around; to surround

confluence

The point where rivers meet; a coming together of forces or ideas

TOEFLC2

confluent

Flowing or merging together; a stream joining another

C2

confuse

To make someone unclear in mind; to mix up two things

NGSL 2kIELTSTOEFL

confusion

A state of disorder or uncertainty; inability to think clearly

NGSL 3kIELTSTOEFL

deflate

To release air from; to reduce in size or confidence

IELTSA2

defluent

Flowing downward

diffuse

To spread widely; spread out and not concentrated

IELTSTOEFLGRE

diffusion

The spreading or dispersing of something widely; molecular intermingling

TOEFLB1

diffusive

Tending to spread or disperse widely

C2

effluent

Liquid waste discharged into water; flowing outward

TOEFLC1

effluvia

Foul-smelling or harmful gaseous emissions

GREC2

effuse

To pour out or emit; to gush with enthusiasm

C2

effusion

An unrestrained outpouring of emotion or liquid

C2

effusive

Expressing feelings in an exaggerated, overly enthusiastic way

C2

flu

Influenza; a contagious viral illness

IELTSB1

fluency

The ability to use a language smoothly and accurately

B2

fluent

Able to use a language accurately and with ease; smooth and flowing

IELTSTOEFLB1

fluently

Smoothly and effortlessly, especially in speech

B1

fluid

A substance that flows freely, like a liquid or gas; flowing or flexible

IELTSTOEFLB2

fluid-filled

Filled with liquid or fluid

fluidity

The quality of flowing easily or changing freely

B2

fluidize

To make solid particles behave like a fluid

B2

fluidized

Given the properties of a fluid

B2

fluidly

In a smooth, flowing manner

B2

flush

To cleanse with water or redden in the face; level with a surface; a rush of water

IELTSTOEFLGRE

flushed

Red-faced from embarrassment, heat, or excitement

C1

flushing

Reddening of the face or skin; causing such redness

C1

flux

A state of continuous change; flow; a chemical agent for cleaning metal

IELTSTOEFLGRE

fuse

To melt or blend together; a safety device in an electrical circuit; a cord that ignites an explosive

IELTSTOEFLC2

fusible

Capable of being melted by heat

C2

fusion

The merging of different things into one; nuclear fusion

IELTSTOEFLGRE

influence

power to affect or change; to affect someone

NGSL 1kIELTSA2

influenced

Affected or shaped by an external person or factor

B1

influencer

A person who affects others' opinions, especially on social media

B1

influencing

Having an effect on someone or something

B1

influential

Having a strong effect on people or events

TOEFLB2

influenza

A contagious viral disease; the flu

TOEFLB2

influx

A large inflow of people or things

IELTSTOEFLGRE

infuse

To fill with a quality; to steep in liquid to extract flavour

TOEFLGREC2

infusion

A liquid made by steeping herbs or tea; the act of introducing something

TOEFLC1

infusive

Having the power to inspire or instill qualities into others

interfuse

To blend together or spread through something

mellifluous

Sweet and pleasant to hear; melodious

GREC2

perfuse

To permeate with a liquid; to force fluid through an organ or tissue

C2

perfusion

The passage of fluid through the circulatory system or an organ

C2

profuse

Abundant or excessive in quantity; 大量的,丰富的

IELTSTOEFLGRE

profusion

A very large quantity; an abundant supply

C2

refluence

A flowing back or backward movement of liquid

refluent

Flowing back; ebbing

B1

refusal

The act of saying no to something

IELTSB1

refuse

To decline or say no; waste material

NGSL 2kTOEFLB1

repudiate

To reject or deny the validity of something; to disown

TOEFLGREC2

suffuse

To spread gradually through or over something, as light, colour, or liquid

TOEFLGREC2

suffusion

The spreading of something over or through a surface or substance

C2

superfluity

An excessive or unnecessary amount of something

GREB1

superfluous

More than what is needed; unnecessary

IELTSTOEFLGRE

transfuse

To administer a transfusion; to pour from one vessel to another

IELTSGREC2

transfusion

Transfer of blood into a person's bloodstream; pouring liquid between vessels

B2

uninfluenced

Not affected or swayed by outside forces

C2

uninfluential

Having little or no influence over others

C2