Do you have an umbrella to lend me?
om-BREL-lo — three syllables, stress on the second.
Ask at reception when it unexpectedly rains and you have no umbrella. Most Italian hotels keep a supply for guest use.
'Da prestarmi' = to lend me ('da' + infinitive expressing purpose or suitability). 'Prestare' = to lend. Italian hotels typically have a selection of umbrellas at reception — often lost-and-found items that are available for guest use. Some sell them; others lend on a trust basis.
Piove. Avete degli ombrelli disponibili?
It is raining. Do you have umbrellas available?
State the reason — it is raining — to show the urgency
Potete vendermi un ombrello?
Can you sell me an umbrella?
Ask to purchase rather than borrow if you prefer
Posso comprare un ombrello qui vicino?
Can I buy an umbrella nearby?
Ask where to buy if the hotel does not lend or sell them
Italian weather changes quickly, especially in spring and autumn. Sudden thunderstorms ('temporali') are common in inland areas and the Po Valley. A lightweight travel umbrella ('ombrellino pieghevole') is always worth packing for Italian travel. Hotel umbrellas, by contrast, are usually the large, sturdy hotel-branded variety.