ESRef2 36:46ܡܐ ܕܚܐܪ ܒܬܪܨܗ ܕܩܝܣܐmˀ dḥˀr btrṣh dqysˀמא דחאר בתרצה דקיסאܡܐ ܕܚܐܪ ܒܬܪܨܗ ܕܩܝܣܐmˀ dḥˀr btrṣh dqysˀמא דחאר בתרצה דקיסאܡܐ ܕܚܐܪ ܒܬܪܨܗ ܕܩܝܣܐܡܐ ܕܚܐܪ ܒܬܪܨܗ ܕܩܝܣܐ: when he is staring at a piece of wood's straightness
2
erectness (?)
Syr
Med 588:23ܬܪܨܗ ܕܣܗܪܐtrṣh dshrˀתרצה דסהראܬܪܨܗ ܕܣܗܪܐtrṣh dshrˀתרצה דסהראܬܪܨܗ ܕܣܗܪܐܬܪܨܗ ܕܣܗܪܐ: the erectness of the moon (i.e., straight overhead or totally vertical? hardly "full moon")†
Re meaning 2: LS2 "full moon" makes little sense; more probable are positions of the moon when the horns are straight vertical or horizontal or at a perfect quarter stage.