תּוּשִׁיָּה tûwshîyâh (H8454)

support or (by implication) ability, i.e. (direct) help, (in purpose) an undertaking, (intellectual) understanding

1) wisdom, sound knowledge, success, sound or efficient wisdom, abiding success 1a) sound or efficient wisdom 1b) abiding success (of the effect of sound wisdom)

or תֻּשִׁיָּה; from an unused root probably meaning to substantiate;