ex ‧ tol /ɪkˈstəʊl $ -ˈstoʊl/ BrE AmE verb ( past tense and past participle extolled , present participle extolling ) [transitive]
[ Date: 1500-1600 ; Language: Latin ; Origin: extollere , from tollere 'to lift up' ]
formal to praise something very much
extol the virtues/benefits etc of something
a speech extolling the merits of free enterprise