Learn how to say Quantifiably correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word quantify:
verb (quantifies, quantifying, quantified)
1express or measure the quantity of:
it is impossible to quantify the extent of the black economy
2 Logic define the application of (a term or proposition) by the use of all, some, etc., e.g. ‘for all x if x is A then x is B’.
mid 16th century: from medieval Latin quantificare, from Latin quantus ‘how much’