Philosophy
Some words connected with PIE world-view:
- *gʰosti- concerned mutual obligations between people and between worshippers and gods, and from which guest and host are derived.
- *h₁r̥-tu-, *h₁r̥-to-, "fitting, right, ordered", also "right time, ritually correct", related to the order of the world (Avestan asha, Vedic Sanskrit rta-, rtu-)
Read more about this topic: Proto-Indo-European Society