work·a·hol·ic 
(wûr′kə-hôlĭk, -hŏlĭk)
(wûr′kə-hôlĭk, -hŏlĭk)n.
One who has a compulsive and unrelenting need to work.
worka·hol′ism n.
- jail
- jailbait
- jailbird
- jailbreak
- jailer
- jailhouse
- jailhouse lawyer
- jailor
- Jain
- Jaina
- Jainism
- Jainist
- Jaipur
- Jakarta
- jake
- jake
- jakes
- Jakob
- Jakob-Creutzfeldt disease
- Jakob Harmenszoon.
- Jakob Liebmann Meyer Beer.
- Jakob Ludwig Felix Mendelssohn-Bartholdy.
- Jakob Ludwig Karl
- Jakobson
- Jalal ad-Din Muhammad ar-Rumi.