# How make an index without referring for each word in the text locally but define a word once globally?

In general I write in the text: \index{Barmherzigkeit} and \index{Gnade} and at the end of the document I include the index with \printindex. (I work with LyX)

I want that all Words ("gnädig" and "Gnade") are listed under the index with keyword "Gnade"

By now I have manually wrote the \index command (on page 1 and 10) which page reference should be used for the keyword "Gnade". There are many words "Gnade" in my text, so I'd like that LaTex automatically finds the words "Gnade" in the text and interpretate these as \index{Gnade} so that the entry in the index for "Gnade" shows: Gnade, 1,6,10,13.

Is it possible to write somewhere before \printindex a list with keywords like "Gnade" that LaTex has to search in the document and then print the page numbers of its finding in the index?

my text:

\documentclass[twoside,ngerman,fontsize=10pt]{scrreprt}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}
\usepackage[a4paper]{geometry}
\geometry{verbose,tmargin=2.5cm,bmargin=2.5cm,lmargin=2.5cm,rmargin=2.5cm}
\pagestyle{empty}
\setlength{\parskip}{1em}
\setlength{\parindent}{0pt}
\usepackage[active]{srcltx}
\usepackage{fancybox}
\usepackage{makeidx}
\makeindex
\PassOptionsToPackage{normalem}{ulem}
\usepackage{ulem}
\usepackage{nomencl}
\providecommand{\printnomenclature}{\printglossary}
\providecommand{\makenomenclature}{\makeglossary}
\makenomenclature
\makeatletter
\renewcommand{\nomname}{Glossar}
\usepackage{fancybox}
\makeatother
\usepackage{babel}
\usepackage{lipsum}

\begin{document}

Page 1:
Zuvor haben wir die Vergebung \index{Vergebung} betrachtet. Gott ist gerecht und zugleich gnädig \index{Gnade}.
\newpage
\lipsum[1-30]
\newpage

Page 6
\newpage
\lipsum[1-20]
\newpage

Page 10:
\newpage
\lipsum[1-15]
\newpage

Page 13:

• Apart from what @cfr says, you simply can't do that without some markup. By the way, you should do \index{Gnade}Gnade – egreg Apr 2 '15 at 22:59
• Do not confuse an index with a word concordance! However, if you write \Vergebung instead of Verbegung, there are possibilities. E.g., you might have \Vergebung (regular index entry), \Verbegun* (no index entry), and, say(?), \Vergebung[als Verzeihung] (sub-entry). – jon Apr 3 '15 at 1:00