icosa-

== English == === Alternative forms === eicosa-, icosi- === Etymology === From Ancient Greek εἴκοσι (eíkosi, “twenty”). === Prefix === icosa- twenty ==== Usage notes ==== The Latinate equivalent of this Greek prefix is variously vigen- (vigenary), vicen- (vicenarian), or vigin- (vigintillion). ==== Derived terms ==== === Anagrams === Socia, ciaos