'advisable' originates from the Latin word 'advisare,' where 'ad-' meant 'toward' and 'visare' meant 'to see or look at.'

'advisare' transformed into the Old French word 'aviser,' and eventually became the modern English word 'advise,' from which 'advisable' is derived.

Initially, it meant 'to look toward or consider,' but over time it evolved into its current meaning of 'recommended or sensible to do.'