estou

first-person singular present indicative of estar

moi

Apocopic form of moito (“very”)

orgulloso

1. proud
2. haughty, arrogant, vain
3. proud (gratified; feeling honoured)

de

1. of, from
2. of; -'s (belonging to)

vós

1. second-person plural nominative personal pronoun; you
2. thou, thee (an elevated form of you, singular)