-FERI - -FARO CORRESPONDENCE

Do you know that 'rose-coloured' in Old High German is 'rōsfaro'?

rose-coloured: ahd. rōsag* 1; rōsfaro* 
(dictionary of Gerhardt Kobler)

While 'soot-coloured' is 'ruozfaro'?

Do you see the total correspondence to the way the names of colours are formed in Georgian?

კავისფერი (kavisferi), ვარდისფერი (vardisferi), იისფერი (iisferi), etc.

The part 'feri' corresponds to the German 'faro' (which is likely to eventually end up being farb and farben).