Onomastic

[,ɒnәu'mæstik]

(adj.) of or related to onomastics; 'he published a collection of his onomastic essays' .

Editor: Trudy--From WordNet

(a.) Applied to a signature when the body of the instrument is in another's handwriting.

Checked by Fern

adj. pertaining to a name esp. pertaining to the signature to a paper written in another hand.—n. Onomas′ticon a list of words: a vocabulary.

Checked by Balder