From Wiktionary, the free dictionary
From toddler + -dom.
toddlerdom (uncountable)
- The period or status of being a toddler.
2007 November 16, Beth Quinn Barnard, “Dropping Off My Daughter, at a New Life”, in New York Times[1]:First, the inseparable years of her infancy and toddlerdom, when we traveled everywhere in tandem.