% -*- coding: utf-8 -*-

\documentclass[12pt]{article}
\usepackage{german}
\usepackage{ucs}
\usepackage[utf8]{inputenc}
\usepackage[LET,T1]{fontenc}
\newcommand\geeztext[1]{\bgroup\fontencoding{LET}\fontfamily{c2000}\selectfont#1\egroup}

\begin{document}

German: Grüß Gott!

\geeztext{አማርኛ ሠላም}

\end{document}