( ( The ( name potash ) ) ( ( refers ( to ( ( ( ( ( several ( potassium salts ) ) , ) ( mild alkalis ) ) , ) ( which ( were ( derived ( from ( ( the ashes ) ( of ( timber ( or ( other plants ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN name) (NN potash)) (VP (VBZ refers) (PP (TO to) (NP (NP (JJ several) (NN potassium) (NNS salts)) (, ,) (NP (JJ mild) (NNS alkalis)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBD were) (VP (VBN derived) (PP (IN from) (NP (NP (DT the) (NNS ashes)) (PP (IN of) (NP (NN timber) (CC or) (JJ other) (NNS plants)))))))))))) (. .)))
The name potash refers to several potassium salts, mild alkalis, which were derived from the ashes of timber or other plants.
(ROOT (S (NP (DT The) (NN word) (NN alkali)) (VP (VBZ comes) (PP (IN from) (NP (DT the) (JJ arabic) (NN al-qili))) (, ,) (S (VP (VBG meaning) (`` ``) (NP (NP (NNS ashes)) (PP (IN of) (NP (NP (DT the) (JJ saltwort) (NN plant)) (PP (IN from) (NP (NN salt) (NNS marshes)))))) ('' '')))) (. .)))