South Lakeland Hydrotherapy Winter Quiz Closing Date 15Th January

[puzzld]

Hi Everybody got a few quizzes where I am stuck on a couple or so, first one is this
No 3 To maintain (5) starts with Up, so need a three letter word to fit
No 39 Run off (9) starts with Under, so need a four letter word
Thank you all in advance and apologies if these have been asked for, but I cant find them

[cashier]

39 underflow?

[puzzld]

Cheers cashier

[Fibonacci]

If closing date is 15th Jan - you've missed it ?

[elliemay1]

3 upkeep, if 6 letters

upkeep (verb):

To maintain (something) or keep it in good repair

[fiction-factory]

Yes, upkeep seemed like the answer to me but puzzld seemed certain it was 2+3=5. I can't think of any 5 letter words that work

[puzzld]

Sorry everybody, only just realised that Fibonacci is correct, missed the closing date, but No3 is definitely only 5 letters

[emeritus]

Uphold

[emeritus]

Sorry missed letter count