"Lippening" is a fairly uncommon term, but it is similar to other words that express the act of becoming more confident or hopeful about something. Some synonyms for lippening include "hoping," "trusting," "relying," "anticipating," "expecting," "counting on," "having faith," or "banking on." These words all suggest a sense of optimism or expectation. Other related words might include "encouraged," "optimistic," "assured," or "confident." Regardless of the specific word choice, the meaning is generally the same - the speaker or writer is expressing confidence that something good will happen or that their expectations will be fulfilled.