Namasté

Dictionary.com Unabridged (v 1.0.1)

na‧ma‧ste  /ˈnʌməˌsteɪ/ Pronunciation Key - Show Spelled Pronunciation[nuhm-uh-stey]

–noun

a conventional Hindu expression on meeting or parting, used by the speaker usually while holding the palms together vertically in front of the bosom.

Dictionary.com Unabridged (v 1.0.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Webster's New Millennium™ Dictionary of English

Part of Speech:	noun, interjection
Definition:	a bow and gesture of greeting or parting with the palms together in front of the chest; also, expressing respect through this gesture and bow
Etymology:	Sanskrit 'homage; bowing to you'

Webster's New Millennium™ Dictionary of English, Preview Edition (v 0.9.6)
Copyright © 2003-2005 Lexico Publishing Group, LLC

Not much in either of the above, but below is much more informative.

At Wikipedia it says, among other things:

It is commonly accompanied by a slight bow made with the hands pressed together, palms touching, in front of the chest.

In a normal context this word is a respectful way of greeting someone. Generally done by younger (or in a hiearchy - underlings) to elders/higher-ups.

In a religious context this word can be taken to mean any of these:

• The Spirit in me meets the same Spirit in you.
• I greet that place where you and I are one.
• I salute the Light of God in you.
• I bow to the divine in you.
• I recognize that within each of us is a place where Divinity dwells, and when we are in that place, we are One.
• My higher energy salutes your higher energy.
• The God in me sees and honors the god in you.
• May the God within you, bless you

In other words, it recognizes the equality of all, and pays honor to the sacredness and interconnection of all, as well as to the source of that interconnection.

To me, Namaste' has always meant something like "The God in me sees the God in you". Guess I'm pretty close on that. :o)