Fiftyfold

Part of speech: adjective, adverb

Definitions

1. Involving a ratio or increase that is fifty times larger than a given baseline
2. Relating to an extent where a certain quantity is multiplied by fifty times its original value
3. Expressing an amount that is enhanced to be fifty times greater than the original

Etymology: "Fiftyfold" is a plain compound: "fifty" joined to the suffix "-fold," which comes from Old English "-feald" and meant "times as many" or "multiplied by." Attaching "-fold" to a number gives a multiplier, so "twofold," "threefold" and "tenfold" all follow the same pattern. The suffix also appears in older words that have nothing to do with multiplication, such as "manifold," "fold" in the sense of a sheepfold, and "untold." In these, the sense of "bending" or "enclosing" is related to the original meaning of "fold" as a verb, which is why the same ending can mean both "many-layered" and "enclosure."

Synonyms: fifty times, fiftyfolded, multiplied by fifty, times fifty, fifty times over