Of middling height, Jahir has the typical body structure of an Eldritch, long and lean. He wears his hair shockingly short for a man, just touching his shoulder blades, usually without ornament but with occasional strands of modest beads (amber or semiprecious stones like jasper). He also dresses modestly in Alliance-standard fashion, but wears his House ring. He has copper eyes (or orange, or dark yellow depending on the light) and a square jaw, and his speaking voice is a low tenor.
Of habits: he is a morning person, moody but analytical, prone to brooding, driven, conservative but adaptable and very curious.
Of abilities: he can sing, play several instruments (piano and some form of lute), rides horses like he was born on them like most Eldritch, is not all that fabulous with a sword but learned them and keeps one with him, in a trunk.
He appears to be a coffee and tea drinker, primarily, with some chocolate/mocha leanings. Rarely partakes in alcohol. And hates warm milk. Particularly honeyed.
(still rough) In college, Jahir took the dual medical/clinical xenopsychology program, which means he's the equivalent of a nurse (in the Alliance they're called healer-assists). His concentration was toxicology/pharmacology. The clinical xenopsychology coursework covered biological, social, cognitive and affective aspects of behavior, with specific classes on xeno-interaction and a side of anthropology classes. There was a required clinical component for assessments and interventions as well, and a required practicum per semester. Plus ethics and professional classes. There was no thesis, which was waived in favor of the practicum.
The medical program was a sort of masters in medical science in pharmacology and therapeutic medicine with a clinical component. Classes there involved health assessment, pathophysiology, a specific biochemistry/chemistry class for healers-assist and health management classes for both the chronically and acutely ill, plus residencies.
This degree is a four-year program for full-time students, and graduates are both qualified to apply for licenses as healers-assist, and have the equivalent of a masters degree in psychology. Jahir did apply for that license and still holds one, though he doesn't need it to practice as a xenotherapist.
Six years into his partnership with Vasiht'h, the events in the novella "Family" take place.
Eight years later is Sediryl's visit to the starbase.
There's a note here: "isn't able to break the taboo with S until after "Petals"."