Latin word ecce comes from Latin ec-, Latin -ce (Affixed, usually to demonstratives, forming deixes.)

Detailed word origin of ecce

Dictionary entry	Language	Definition
ec-	Latin (lat)	Prefixed to interrogatives, has intensive or indefinite force (combining with f-initial words).
-ce	Latin (lat)	Affixed, usually to demonstratives, forming deixes.
ecce	Latin (lat)	(mostly elliptical) here!, used to denote that something is present (confer the French voici, or the Italian ecco). See!, look!, behold!, points out something with emphasis.

Words with the same origin as ecce