No, we didn’t make this word up š
‘Sinalco’ is said to beĀ an abbreviation of theĀ LatinĀ sine alcohole, which means “without alcohol”. Sinalco is the oldest soft drink brand in Europe (it was first marketed in 1902!), and is produced by Sinalco International, Germany.
Perhaps the advertisement might give you a clue as to how these bottles of non-alcoholic drinks looked like back then.
