The 'copulative ''a''' (also '''a'' copulativum', '''a'' athroistikon') is the
prefix ''a-'' expressing unity in
Ancient Greek, e.g. in ''a-delphos'' "brother", from
★ '' literally "from the ''same'' womb" (c.f.
Delphi). it goes back to a
PIE ★ '', cognate to English ''same'' (see also
Symbel). The disappearance of the ''s-'' is a specifically Greek
sound law, and the cognate forms in other languages typically still preserve it, e.g.
Sanskrit '', present e.g. in the term for the language itself, viz. '' "put together".
''See also:''
privative a.