Wiktionary
n. The rear part of a chair that supports the sitter's back.
Usage examples of "chairback".
He had found Beaumont fuming by the wardroom stove, his jacket drying on a chairback while he sipped repeatedly from a silver flask.
They had taken a chairway but it was too slow for the inspector and he bounded along like a rabbit from chairback to chairback, and Bill was close behind.
Pandsala's long fingers trailed over the chairbacks as she approached, the smile pale on her face.
Placing his hands upon leafy chairbacks, punching the air, turning to face the window, flexing his shoulders.
Nobles in the lower seats were hammered into their chairbacks by the fury of the detonation, and a gust clapped in backlash over the rising tiers of seats.
She snatched a quilted robe from a chairback, and whirled, heart pounding, to confront the charcoal shadow which demarked the barred arch of the doorway.
He shoved back his chair quickly and beamed inwardly as he heard the involuntary "oof" that the big man gave as the chairback dug into his stomach.
The Achaean underking was seated in a chair not far from the hearth, his cloak thrown over the chairback.