zeura = straight (adjective) (some things Google found for "zeura": a uncommon term; user names; Zeura Brotherhood on EVE Online game; Zeura Network of Spain; name of a World of Warcraft character; a rare last name; a rare old-fashioned feminine first name; in Basque similar word zeure is a strong genitive pronoun meaning your)
Word derivation for "straight (adjective)" :
Basque = zuzen, Finnish = suora
Miresua = zeura
This is the adjective straight, meaning not crooked or bent, direct. The word straight occurs in paragraph 5 of Alice's Adventures in Wonderland, but as an adverb: "The rabbit-hole went straight". The adverb straight will be similar, with a added suffix almost certainly ending in n.