the.com/initial

The first letter doing a whole name's job so you don't have to commit.

means Relating to the very beginning of something, or the first letter of a name used as a stand-in for the whole thing.

from From Latin initialis, 'of the beginning,' from initium meaning 'entrance' or 'beginning' — itself from inire, 'to go in' (in- 'into' + ire 'to go'). So an initial is literally a 'going-in' letter: the one that steps through the door first and lets the rest of the name stay home.

legal weight
Initials on contracts mean you read that page
monogram flex
Luxury brands sell letters for more than names
etymology
From Latin initium, meaning beginning
verb form
To initial is to approve in miniature
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