IPA: /ˌwɜːrkəˈhɒlɪzəm/
KK: /wɜrkəˈhɑlɪzəm/
The condition of being addicted to working too much, often at the expense of personal life and health.
His workaholism made it difficult for him to spend time with his family.
Workaholism is formed from "work" (from Old English *weorc*, meaning labor or effort) and "-aholism" (from the suffix "-holism" which is derived from the Greek "holos", meaning whole or entire, combined with the English suffix "-ism" indicating a practice or condition). The term describes a condition of being addicted to work, where work becomes a central part of one's life.
Think of 'work' as the effort you put in, and '-aholism' as a condition of being wholly devoted to something. This helps you remember that workaholism means being entirely consumed by work.
No commonly confused words.