upthrow

== English == === Etymology === From Middle English upthrowen, equivalent to up- +‎ throw. === Verb === upthrow (third-person singular simple present upthrows, present participle upthrowing, simple past upthrew, past participle upthrown) (archaic, poetic) To throw or cast upwards. (geology, transitive) To throw up (a mass of material) from below, causing a fault. (geology, intransitive, of a mass of material) To be thrown up from below, causing a fault. === Noun === upthrow (plural upthrows) (geology) A fault in which a mass of material has been thrown up from below. === Anagrams === throw up, throw-up, throwup