A Midwesterner, Will Hays, Jr., who is proud of his knowledge of post-Civil-War history, tells me the following origin of shot , as in shotglass , absent from  Gunning for the English Language :
( ( ( ( ( ( A Midwesterner ) , ) ( Will Hays ) ) , ) ( ( Jr. , ) ( who ( ( ( ( ( is ( proud ( of ( ( his knowledge ) ( of ( post-Civil-War history ) ) ) ) ) ) , ) ( ( tells me ) ( ( the ( following origin ) ) ( of shot ) ) ) ) , ) ( as ( in ( ( shotglass , ) ( absent ( from ( Gunning ( for ( the ( English Language ) ) ) ) ) ) ) ) ) ) ) ) ) : )
(ROOT (NP (NP (NP (DT A) (NN Midwesterner)) (, ,) (NP (NNP Will) (NNP Hays)) (, ,) (NP (NP (NNP Jr.)) (, ,) (SBAR (WHNP (WP who)) (S (VP (VP (VBZ is) (ADJP (JJ proud) (PP (IN of) (NP (NP (PRP$ his) (NN knowledge)) (PP (IN of) (NP (JJ post-Civil-War) (NN history))))))) (, ,) (VP (VBZ tells) (NP (PRP me)) (NP (NP (DT the) (JJ following) (NN origin)) (PP (IN of) (NP (NN shot))))) (, ,) (PP (IN as) (IN in) (NP (NP (NNS shotglass)) (, ,) (ADJP (JJ absent) (PP (IN from) (S (VP (VBG Gunning) (PP (IN for) (NP (DT the) (NNP English) (NNP Language)))))))))))))) (: :)))
Will Hays Jr., who is a Midwesterner, knows how the word shot came to be in the form "shotglass".
( ( ( ( ( Will ( Hays Jr. ) ) , ) ( who ( is ( a Midwesterner ) ) ) ) , ) ( ( knows ( how ( ( the ( word shot ) ) ( came ( to ( be ( in ( the ( form ( `` ( shotglass '' ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Will) (NNP Hays) (NNP Jr.)) (, ,) (SBAR (WHNP (WP who)) (S (VP (VBZ is) (NP (DT a) (NN Midwesterner))))) (, ,)) (VP (VBZ knows) (SBAR (WHADVP (WRB how)) (S (NP (DT the) (NN word) (NN shot)) (VP (VBD came) (S (VP (TO to) (VP (VB be) (PP (IN in) (NP (DT the) (NN form) (`` ``) (NN shotglass) ('' '')))))))))) (. .)))