From the OED:<br><br><blockquote><font size=1>In reply to:</font><hr><p><br>semasiology<br><br>That branch of philology which deals with the meanings of words, sense-development, and the like. <br> <br>   [a1829 C. K. REISIG Vorlesungen über Lateinische Sprachwissenschaft (1839) II. 286 (heading) Semasiologie oder Bedeutungslehre.] 1847 J. W. GIBBS Philol. Studies (1857) 18 The development of intellectual and moral ideas from physical, constitutes an important part of semasiology, or that branch of grammar which treats of the development of the meanings of words. 1877 R. MARTINEAU tr. Goldziher's Mythol. Hebrews iii. 43 Some phenomena in the semasiology of Arabic words. 1884 Athenĉum 27 Sept. 395/1 Philology is now advancing towards a new branch having intimate relations with psychology, the so-called semasiology of Abel and others.<br><p><hr></blockquote><p>