A proper name, not an English adjective
In current English, baruch is almost never a common word. It is a proper name. It identifies Jeremiah’s scribe in the Hebrew Bible, a short book kept in Catholic and Eastern Orthodox canons and treated as apocryphal by most Protestants, a Jewish masculine given name still in use, and, less often, a family name. English dictionaries that add an etymology usually note that the Hebrew source means blessed. That note is right about the source language and easy to misread in English: speakers did not borrow a word they could apply to a harvest or a lucky day. They borrowed a personal name that already meant the blessed one in Hebrew.
The origin of the word baruch is the story of that participle, carried through Greek and Latin Scripture and then left in English as a label for people and a book.
How the name entered English
In the Hebrew Bible the form is already a man’s name, given to at least three Israelites. The best known is Baruch son of Neriah, companion and secretary to the prophet Jeremiah in the sixth century BCE, the man who wrote the prophet’s oracles on a scroll and later held the deed when Jeremiah bought a field during the siege of Jerusalem. Nehemiah also names a priest, son of Zabbai, who helped repair Jerusalem’s wall, and a Judahite, son of Col-Hozeh. Later tradition attached the first of these men to the Book of Baruch.
Greek translators transcribed the Hebrew name closely. Josephus used a slightly fuller Greek shape. Latin Bibles settled on Baruch, and English followed that spelling rather than inventing a native equivalent such as Blessed. An English form is already in the Wycliffite Bible of 1395. Wycliffe’s circle worked from the Latin Vulgate, so the letters English readers still use track a medieval Latin tradition, not a fresh hearing of spoken Hebrew. The 1611 Authorized Version kept the same spelling for Jeremiah’s scribe.
Two routes matter. In Jeremiah and Nehemiah the name belongs to the Hebrew canon and reached English along the ordinary biblical chain. The Book of Baruch is a separate stream. The Latin text that traveled in the Vulgate is an old Latin rendering from Greek, not Jerome’s work from Hebrew. From the later Middle Ages the book title moved with Latin Bibles, and English inherited that title together with the personal name. Protestant parents began giving the name to children in the second half of the sixteenth century, when Old Testament names were widely revived. Jewish use had not stopped in the meantime.
The participle and the three-letter root
Hebrew morphology is the clearest part of the history. Three consonants, often written B-R-K, form the root. The basic verb means to bless. The form behind the name is the masculine singular passive participle: the one who is blessed, or the one who has been blessed. Hebrew often turns such participles into given names. No extra prefix or diminutive is hiding in the English spelling.
The same root yields the noun for a blessing, later heard in everyday speech as bracha, and the opening of standard Jewish formulas that still begin by calling God blessed. Those formulas keep the adjective alive in Hebrew even when English treats the borrowed form only as a name. Aramaic has a related passive. Across Arabic the same Semitic root is ordinary: Mubarak is a passive blessed name from that family, and Barak or Barack is a related shape. Yiddish preserves a form of the given name. Polish Berek is another local outcome of the same Hebrew name. Latin Benedictus is not a cognate. It is a translation of the same idea, which is why the philosopher Baruch Spinoza also appears in Latin dress as Benedictus.
Blessing, the knee, and an unsettled start
Hebrew also uses those three consonants for the knee. The verb meaning to kneel is rare in the Bible: worshipers kneel in a handful of verses, and in one narrative camels are made to kneel. The verb meaning to bless occurs hundreds of times. That overlap has never been fully sorted out.
Some linguists treat bless and kneel as one root, with blessing imagined through the posture of homage or prayer. Others split the material into two look-alike roots that should not be merged. A further proposal, associated with Umberto Cassuto, takes the original verbal sense as bestowing a gift rather than as bending the body. None of these accounts is settled. What the texts themselves show is simpler. Blessing is the dominant verbal use. The knee noun is common. The personal name is formed from the blessed participle, not from the word for the joint.
In this family of words, to bless is a strong act. God blesses people, land, labor, and time. People bless God in praise. People bless one another at meeting and at parting. The name marks its bearer as someone on whom that favor is thought to rest. It does not mark priestly office or a special cultic rank.
What English kept
English took the name and left the grammar behind. The borrowed form does not inflect, and it is not used of ordinary luck. Pronunciation split along two habits: an older biblical stress on the first syllable, and a modern Hebrew-influenced stress on the second. The meaning blessed remains a dictionary footnote rather than a living English sense.
The hard remainder is the participle itself. After the book title, the American surname, and the college named for Bernard Baruch are set aside, the English word is still a Hebrew passive, carried in by translators who chose to keep the foreign name instead of rendering it as Blessed.