Template:el-nM-ος-οι-2b
The inflection-table template for Greek nouns declining like γέρος (géros). Other examples may be found in the Category:Greek nouns declining like 'γέρος'.
The syntax {{el-nM-ος-οι-2b|γέρ}}
produces the table:
Declension of el-nM-ος-οι-2b
A full list of other declension-table templates with a brief indication of use can be found at Wiktionary:Greek noun inflection-table templates.