Verifiably

Part of speech: adverb

Definitions

1. Carried out in such a way that it can be substantiated or proven through objective evidence
2. Performed in a manner that enables validation and is open to confirmation through reliable data
3. Done in a way that allows truth or accuracy to be established through clear evidence

Etymology: "Verifiably" is a plain suffixed formation: the adjective "verifiable" with the adverbial ending "-ly" added. The adjective is built from "verify," which came into English from Old French "verifier," from Latin "verificare," meaning "to make true," from "verus" ("true") and "facere" ("to make"). The "-able" part descends from Latin "-bilis" through Old French, and in English it signals that something can be done, so "verifiable" means "able to be made true" or, in modern usage, able to be checked. The "-ly" ending is much older than the rest. It goes back to Old English "-līce," which was attached to adjectives to form adverbs of manner, the same pattern that gives "quickly" or "boldly." Attaching it to "verifiable" yields an adverb describing an action done in a way that can be confirmed by evidence. The word is a straightforward combination of parts that were already in English, so its meaning is transparent from its construction.

Synonyms: demonstrably, provably, evidently, confirmably, ascertainably

Antonyms: unverifiably, doubtfully, questionably, suspect, ambiguously