This word is from the Spanish servidora.
serbidora
female server
This is not that commonly used in modern Filipino conversation.
A synonym could be tagasilbi.
In the old days, the Filipino word was closer to the meaning of the Spanish, which refers to a maid. But with the influence of English, any usage these days would more likely be equivalent to the English concept of “server.”
A male server would be a serbidor, from the Spanish servidor.