sneeze தும்மு tummu (tummu) (3 intr) exhale spasmodically; expel air forcibly from the mouth and nose in an explosive, spasmodic, involuntary action, resulting from irritation of the mucous membranes
Usage:
ஒரு மாதமாகத் தும்மிக் கொண்டிருக்கிறேன் oru mātamākat tummik koṇṭirukkiṟēṉ oru maasamaa tummiṭṭu irukkeen I've been sneezing constantly for a month now.