Meaning of -FOLD in English

-FOLD

[-fold] suffix [ME, fr. OE -feald; akin to OHG -falt -fold, L -plex, -plus, OE fealdan] 1: multiplied by (a specified number): times--in adjectives "a sixfold increase" and adverbs "repay you tenfold"

2: having (so many) parts "threefold aspect of the problem"

Merriam-Webster English vocab.      Английский словарь Merriam Webster.