Origin: Latin suffix -ate
Fortunate has 4 different meanings across 1 category:
having unexpected good fortune
"other, less fortunate, children died"
"a fortunate choice"
Auspicious.
"The opening of the ceremony was considered fortunate, as a rainbow appeared over the stage to bless the new leaders."
The word "fortunate" comes from Latin fortūnātus, which was formed by combining fortūna meaning "fortune or luck" with a suffix that creates adjectives. It entered Middle English as an adjective describing someone favored by good fortune, rather than retaining the original sense of being literally made lucky through action.