Rainproofed

Part of speech: adjective

Definitions

1. The condition of being designed to resist water damage while preserving usability
2. The feature of being constructed to prevent water from entering and causing harm in various applications
3. Treated or constructed so that rain cannot penetrate and cause damage

Etymology: "Rainproofed" is the past form of "rainproof," so its history is that of the adjective it comes from: "rain" combined with "-proof." The first element descends from Old English "regn," which has been part of English since the earliest recorded period and traces back to a Proto-Germanic root shared with the other Germanic languages. The second element, "-proof," is an English formation that developed from the noun "proof" in the sense of a test or trial, as in the "proof" of something that has been tested and found to hold up. The combination follows a familiar pattern in English, where "-proof" attaches to a noun to mean "resistant to" or "impervious to" that thing, as in "waterproof," "fireproof," and "soundproof." "Rainproof" applies the same model to rain, describing a fabric, coat, or surface that keeps rain out. Its past forms, "rainproofed" and the verb sense of treating something to become rainproof, belong to that same formation.

Synonyms: waterproofed, weatherproofed