lessons from meet joe black

my roommate and i were watching meet joe black (which i've seen like ten times at this point) and i had to look these up:

dervish
main entry: der·vish
pronunciation: 'd&r-vish
function: noun
etymology: turkish dervis, literally, beggar, from persian darvIsh
1 : a member of a muslim religious order noted for devotional exercises (as bodily movements leading to a trance)
2 : one that whirls or dances with or as if with the abandonment of a dervish

and...

diffident
main entry: dif·fi·dent
pronunciation: -d&nt, -"dent
function: adjective
etymology: middle english, from latin diffident-, diffidens, present participle of diffidere to distrust, from dis- + fidere to trust -- more at BIDE
1 : hesitant in acting or speaking through lack of self-confidence
2 archaic : distrustful
3 : reserved, unassertive
synonym see shy
- dif·fi·dent·ly adverb