year-round
‘existing, active, or continuous throughout the year’
Lexical development traced from the Tamil root:
year + round < A.F. rounde, O.F. roont < redond < Vulgar Lat. retundus < Lat. rotundus ‘like a wheel, circular, round,’ related to Lat. rota ‘a wheel, a potter’s wheel; wheel for torture’ < rawnd < ret- < Tamil uruḷ