Dictionary: ON-LY – O'NYX

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ON-LY, adv.

  1. Singly; merely; barely; in one manner or for one purpose alone. I propose my thoughts only as conjecture. – Burnet. And to be loved himself, needs only to be known. – Dryden.
  2. This and no other wise. Every imagination of the thoughts of his heart was only evil continually. – Gen. vi.
  3. Singly; without more; as, only begotten.

ON'O-MAN-CY, n. [Gr. ονομα, name, and μαντεια, divination.]

Divination by the letters of a name. Destinies were superstitiously, by onomancy, deciphered out of names. – Camden.


Predicting by names, or the letters composing names. – Camden.

ON-O-MAS'TIC, n. [Gr. ονομα.]

A dictionary; a common-place book.

ON-O-MA-TECH'NY, n. [Gr. ονομα and τεχνη.]

Prognostication by the letters of a name.


One versed in the history of names. Coleman.

ON-O-MA-TOL'O-GY, n. [Gr. ονοματα and λογος.]

A discourse or treatise on names, or the history of the names of persons.

ON-OM'A-TOPE, n. [or ON-OM'A-TO-PY; Gr. ονοματοποιια; ονομα, name, and ποιεω, to make.]

  1. In grammar and rhetoric, a figure in which words are formed to resemble the sound made by the thing signified; as, to buzz, as bees; to crackle, as burning thorns or brush. – Encyc.
  2. A word whose sound corresponds to the sound of the thing signified.


Formed to resemble the sound of the thing signified. – Robinson.

ON'SET, n. [on and set.]

  1. A rushing or setting upon; a violent attack; assault; a storming; appropriately, the assault of an army or body of troops upon an enemy or a fort. The shout / Of battle now began and rushing sound / Of onset. – Milton.
  2. An attack of any kind; as, the impetuous onset of grief. – Philips.

ON'SET, v.t.

To assault; to begin. [Not used.] – Carew.


A rushing or assaulting.

ON-SLAUGHT, n. [on'slaut; Sax. onslægan, to strike, to dash against.]

Attack; onset; aggression; assault. – Hudibras.


A single farm-house. – Grose.

ON-TO-LOG'IC, a. [or ON-TO-LOG'IC-AL; see Ontology.]

Pertaining to the science of being in general and its affections.


In the manner of ontology.


One who treats of or considers the nature and qualities of being in general.

ON-TOL'O-GY, n. [Gr. οντα, from ειμι, and λογος, discourse.]

That part of the science of metaphysics which investigates and explains the nature and essence of all beings, their qualities and attributes. – Encyc.

ONUS-PROBANDI, n. [Onus probandi; L.]

The burden of proof.


  1. Advanced or advancing; as, an onward course.
  2. Increased; improved. Sidney.
  3. Conducting; leading forward to perfection. Home.

ON'WARD, adv. [Sax. ondward, andweard; on and weard, L. versus.]

  1. Toward the point before or in front; forward; progressively; in advance; as, to move onward. Not one looks backward, onward still he goes. Pope.
  2. In a state of advanced progression.
  3. A little further or forward.

ON'Y-CHA, n. [from Gr. ονυξ.]

Supposed to be the odoriferous shell of the onyx-fish, or the onyx. Exod. xxx.


A kind of marble.


Divination by the nails.

O'NYX, n. [Gr. ονυξ, a nail, L. onyx.]

A semi-pellucid gem with variously colored zones or veins, a variety of chalcedony. Encyc. Nicholson.