etkp.com
Every character in a domain shows up on invoices, in email addresses, on packaging, in verbal referrals and in the narrow space a mobile browser allows a link. That repetition is where the cost of a long name actually accumulates.
ETKP is four characters, pronounceable as a single beat, with no incumbent meaning to displace. Initials for a firm, a fund or a foundation, or a coined mark in its own right. Nothing to correct, nothing to unlearn.
The argument for short names keeps getting made because it keeps being right. Companies that begin long generally try to buy short later and pay more for it, having spent years measuring what the length cost them in mistyped addresses and repeated spellings.
Four-character .com is the practical floor for a business, and the set has been fully allocated for a long time.
Serious enquiries only. The name is listed.