Currently I use www.etymonline.com but this reference does not show details. For example prefix pro- in the meaning of "in place of" comes from Latin prō- (and not pro-)

marked as duplicate by Mitch, Glorfindel, NVZ, Community Apr 1 '18 at 7:42

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  • 1) Get filthy rich. 2) Buy the rights to some etymological dictionary you like. 3) Have it made available online for free. – Hot Licks Mar 29 '18 at 0:33
  • And your question is...? – Paul Childs Mar 29 '18 at 1:08
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    Wiktionary has good coverage of the languages that are important for English etymology, although it's not without errors (honestly, though, I think few dictionaries are). – sumelic Mar 29 '18 at 1:43
  • @sumelic . at least in this case is not good enough. – tuxestan Mar 29 '18 at 1:58
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    It works best if you follow the links, rather than just looking at the article about the English word. The Wiktionary article on the Latin word "pro" tells you the vowel length and gives some further information about the etymology. – sumelic Mar 29 '18 at 2:05
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    Etymonline is the best free online resource. It takes most of its material from the OED which is the best resource overall; it is online and is accessible for free online with a library card in most of the US and UK. Wiktionary is a work in progress; there will be good parts and not so good parts. – Mitch Mar 30 '18 at 13:12
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    Also see the dictionary section of the big link to online resources – Mitch Mar 30 '18 at 13:17

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