H

H is a letter of the Latin (Roman) alphabet, the script now used to write English and most languages of western Europe and, today, much of the world. It represents /h/. Historically it is from Phoenician heth by way of Greek eta. Unlike the Hebrew and Greek alphabets, the Latin (Roman) alphabet never developed a systematic per-letter mystical or numerological tradition: Roman numerals form a separate, non-alphabetic system, so this entry stays with the letter's linguistic and historical record. The Roman alphabet is the youngest of the three historical scripts covered in this atlas: Latium adapted it around the 7th century BCE from a west Greek alphabet, reaching it through Etruscan intermediaries who had themselves taken their letters from Greek colonists settled in the bay of Naples. Latin calls each letter simply by its sound rather than by an inherited name, unlike Hebrew and Greek, and it never built an alphabetic numeral system of its own, so there is no ancient Latin counterpart to Hebrew gematria or Greek isopsephy; Roman numerals are a separate, non-alphabetic notation.

A modern practice called name numerology, drawn from a twentieth-century repeating 1-to-9 chart and commonly marketed as Pythagorean despite no documented link to Pythagoras, assigns the letter H the digit 8; a rival popular scheme, the so-called Chaldean system, assigns different digits to the same letters, so even the two modern schemes disagree with each other.

The Latin H's sound, descended from Phoenician heth through Greek eta, is discussed elsewhere in this atlas; here the subject is the shape. Heth was drawn as a fence or a ladder, a set of horizontal bars between two uprights, and the earliest Greek borrowings of the letter kept that consonantal H value and its ladder-like form.

Classical Athenian Greek later repurposed the same letter, eta, as a long vowel and dropped its H sound entirely, a change that happened only in eastern Greek dialects; the western Greek alphabets that Etruscan and then Rome borrowed from had already fixed H as a consonant before that eastern shift occurred, which is why Latin kept the letter's original sound while classical Greek moved away from it.

The Roman capital H, two verticals joined by a single crossbar, is essentially the ladder shape reduced to its simplest form, and it has barely changed since. The lowercase h, formed in medieval cursive and uncial hands by extending one upright into an ascender and rounding the other side into a small arch, fixed the shape still used in printed and digital type today.

Some Romance languages that inherited H from Latin later stopped pronouncing it altogether, keeping the letter in spelling purely as a historical marker, so that French and Italian words beginning with h are, in ordinary speech, silent survivals of a sound the Etruscans borrowed from Phoenician heth some twenty-seven centuries ago.