sniffling

/S N IH1 F L IH0 NG/
verb
  1. 1

    To make a whimpering or sniffing sound when breathing, because of a runny nose.

    โ€œSonia sniffled a little, and her eyes were puffy and wet.โ€

  2. 2

    To utter with a whimpering or sniffing sound.

    โ€œHe sniffled a pathetic apology.โ€

noun
  1. 1

    A sniffle sound or action.

    โ€œWe heard snifflings and a cough from behind the hedge.โ€

Source: https://en.wiktionary.org/wiki/sniffle, https://en.wiktionary.org/wiki/sniffling