He 'waxed' nostalgic about his childhood. [=he talked/wrote nostalgically about his childhood]
The floor has just been 'waxed'.
He 'waxed' his car today.
(..) hath cozened you at blind man's buff? Oh shame, where is thy blush? Rebellious hell, if thou canst mutiny in a matron's bones to flaming youth... ...let virtue be as wax and melt in her own fire Oh speak no more. Thou turn'st mine eyes into my very soul And there I see such black and grained spots (..)2015 Hamlet
(..) you know right well you did And with them words of so sweet breath composed as made the things more rich Their perfume left, take these again For to the noble mind rich gifts wax poor when givers prove unkind There my lord - Are you honest? - Yes, my lord - I did love you once (..)2015 Hamlet