Here is a word I am trying to produce with textgreek:
So far, I have
\documentclass{book}
\usepackage[LGR,T1]{fontenc}
\newcommand{\textgreek}[1]{\begingroup\fontencoding{LGR}\selectfont#1\endgroup}
\usepackage{amsmath}
\usepackage[greek,english]{babel}
\begin{document}
\thispagestyle{empty}
\Huge
\textbf{\textgreek{peirathoion}}
\end{document}
which produces:
As you can see, the ``alpha'' does not appear as an a'; and, there is no mark under the first o' as the original picture indicates.
Can anyone provide help in modifying the code so that the original word is produced?
Thank you.



\documentclass{article} \usepackage[greek,english]{babel} \begin{document} \textgreek{πειρατήριον} \end{document}– Ivan Jun 18 '21 at 21:30