The primary meaning of "bow, salutation" is Rigvedic. It is an s-stem formed on the basis of the verbal root nam ( namati, नमति), meaning "to bend, bow, to submit one's self".
All alternative meanings are limited to glossaries and lexicographies (Naighaṇṭuka and other collections).
नमस् (námas) n
- bow, obeisance, reverential salutation, adoration (by gesture or word)
- a thunderbolt
- gift, donation
नमस् (námas) m
- an inarticulate cry