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  3. /rat

rat_reckon

Latin

Variants

ratratusratioration

Related Roots

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About This Root

From Latin ratus, past participle of rērī (to reckon, calculate, think), and its noun ratiō (reckoning, reason). Spans calculation (rate, ratio, ration) and reasoning (rational, reason, reasonable). Ratify means to make valid by formal reckoning. The connection between calculating and reasoning reflects how Latin treated logical thought as a form of accounting.

Associated Words

rate

a measure or speed; a price; to evaluate

NGSL 1kIELTSA2

ratification

The formal approval or confirmation of an agreement or treaty

GREA1

ratify

To formally approve or confirm an agreement or treaty

TOEFLGREA1

rating

A score or rank indicating quality or status

A2

ratio

The proportional relationship between two quantities

NGSL 3kIELTSTOEFL

ratiocination

Logical, methodical reasoning

GREC2

ration

A fixed allowance of food or resources; to distribute in limited amounts

TOEFLGREB1

rational

Based on reason and logic; sensible

IELTSTOEFLGRE

rationing

Controlled distribution of scarce resources

TOEFLA1

reason

the cause or justification; the capacity for logical thought

NGSL 1kIELTSTOEFL

reasonable

Fair and sensible; not excessive

NGSL 2kIELTSB1

reasoning

The process of logical thinking to form conclusions

A1

reasons

Causes or justifications for something; to think logically

IELTSA1