upas 1 Sense 1 verb English. Of soil, loses its fertility. Example sentence: Subanen. Sug lupa' nami, sa' ma'is dai pemula dun, mekaika' na gupa, pu' miupas na pati' sug lupa' dia. English. If we just planted corn on our land (and no legumes), the plants would be very small, because the soil has completely lost its fertility. Sense 2 English. Loses one's desire for the opposite sex: frigid.