The story
- Latin · derived fromitem“also; in the same manner”
- Middle English · inherited fromitem
- English todayitem
From Middle English item, from Latin item (“also; in the same manner”). The present English meaning derives from a usage in lists, where the first entry would begin in primis (“firstly”) or imprimis, and the other entries with item (“also, moreover”). Later, the members of lists were referred to as "items".
Etymology from Wiktionary, CC BY-SA 4.0.