Meaning

verb reduce in scope while retaining essential elements

verb shorten

originFrom Middle English abbreviaten, from abbreviat(e) (“abbreviated”, used as the participle of abbreviaten) + -en (verb-forming suffix), borrowed from Latin abbreviātus, perfect passive participle of abbreviō (“to shorten”) (see -ate (verb-forming suffix)), formed from ab- + breviō (“to shorten”), from brevis (“short”). Alternatively, a back-formation from abbreviation. Doublet of abridge.

Etymology from Wiktionary, CC BY-SA 3.0