The Collaborative International Dictionary
Upsun \Up"sun`\, n. (Scots Law) The time during which the sun is up, or above the horizon; the time between sunrise and sunset.
Wiktionary
n. (context legal Scotland English) The time during which the sun is up, or above the horizon; the time between sunrise and sunset.
Usage examples of "upsun".
Tigger pointed at a winged figure upsun from them, also in a stoop, diving with wings swept back, keeping them in sight.
Crossing a broad gap in the cloud plain, Rachel saw the Greenie rise up behind them, taking a look upsun, then drop back down to sweep along the base of the clouds, slowly falling behind, but winging in the same direction that they were, shadowing from a safe distance.
So long as the Greenie guessed where they were going, and kept cutting upsun, Tigger would not shake her.
He led her through a thick cloudbank, then doubled back, climbing swiftly upsun, meaning to silence the Greenie following them.
Unable to flee upsun, or to the aerostat, the Greenie girl had to dive for the deck, in a stern chase Tigger was sure to win.