(p. 9) ajñāta unknown; unpublished, unrevealed; secret, hidden; obscure; mysterious. ̃কূলশীল a. one whose family and behaviour are unknown; of unknown identity. ̃নামা a. one whose name is not known; (of persons) not famous, obscure. ̃পরিচয় a. one whose identity is not known. ̃পূর্ব a. not known before; hitherto unknown. ̃বাস n. act or period of living incognito. ̃রাশি n. (math.) an unknown quantity. ̃সারে, অজ্ঞাতে adv. not to one's knowledge, unknowingly; secretly, stealthily. 111)

(p. 563) -nāmā1 (used as a sfx.) bearing a particular name, named, designated. অজ্ঞাতনামা a. nameless; unknown. 35)