L-histidine

[1. Belonging or pertaining to him; used as a pronominal adjective or adjective pronoun; as, tell john his papers are ready; formerly used also for its, but this use is now obsolete. No comfortable star did lend his light. (Shak) Who can impress the forest, bid the tree Unfix his earth-bound root? (Shak) also formerly used in connection with a noun simply as a sign of the possessive. The king his son. Shak. By young Telemachus his blooming years. pope. this his is probably a corruption of the old possessive ending -is or -es, which, being written as a separate word, was at length confounded with the pronoun his. 2. The possessive of he; as, the book is his. The sea is his, and he made it. Origin: as. his of him, his, gen. Masc. & neut. Of h, neut. Hit. see He.