From Lateinisch-Deutsch FreeDict-Wörterbuch ver. 1.0.3: aer /ˈaɪr/ (aeris /ˈaɪrɪs/ <gen>) <n, sg, m> Luft
aer /ˈaɪr/ (aeris /ˈaɪrɪs/ <gen>) <n, sg, m> Luft