Crossword Genius

Increased threefold (7)

Ross

I believe the answer is:

trebled

'increased threefold' is the definition.
('treble' can be a synonym of 'increase threefold')

This is the entire clue.

(Other definitions for trebled that I've seen before include "produced twice as much again" , "Multiplied by three" , "Increased threefold" .)

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