Consolar means "to comfort" or "to console". It's a beautiful and empathetic verb that isn't as common as everyday verbs, making it stand out.
In the context of "Menina Bonita Não Chora", Jorge Ben Jor uses this word to express his intention to soothe and reassure the "pretty girl" who is crying. He sings, "Eu estou para aqui lhe consolar" (I am here to comfort you), highlighting his role as a source of solace and support.
Jorge Ben Jor keeps this one simple: a plea to stop crying, repeated until it sinks in. "Menina bonita não chora" ("Beautiful girl, don't cry") opens and closes almost every verse, less a lyric than a mantra riding a rolling samba groove. The comfort on offer is plain and direct — "Eu estou para aqui lhe consolar" ("I'm here to comfort you"), "O meu amor é forte" ("My love is strong") — with no story beyond the reassurance itself. By the outro the words give way to scat syllables, "lá lá lá", as if the song trusts the rhythm more than the words to finish the job.