1. Producing heat.
2. Moving back and forth, ebbing like the tide.
From the Latin æstus meaning "heat" and "tide" and the English -ferous from the Latin fero meaning "I bear/carry."
Alternative spelling: Aestiferous.
The second meaning above is gradually becoming obsolete in modern English, but for the sake of learning I've worked both meanings into today's usage below.
“Hazel could feel the thief's estiferous breath on her neck contrasting with the cold of the night. It made her shiver and it made her uncomfortable and yet each time he would inhale she would hold her own breath waiting for him to breathe out again, craving the feel of him on her skin. The estiferous pattern was simply torture."
Ooh la la.
~ Love Tahlia, who just finished a 5000 word research assignment. About paper.