68 Phonology [f§ 141-3 hop; OE. OS. topp, O.Icel. toppr, from "toon' or *tobnt, top, summit; OE. heap, OS. hop, OHG. houf, from 'xauTJni; OE. cnotta, from *knođnt, beside OHG. chnođo, chnoto, knot; Goth, hrelts, OE. OS. hwīt, from *xwiđní, white; OE. bucc, O.Icel. bokkr, OHG. boc (gen. bockes), prim, form *bhugnos, buck; OE. liccian, OS.leccōn, OHG. lecchōn.from 'legn', to lick ; OE. locc, O.Icel. lokkr, prim, form *lugnos, lock; OE. smocc, O.Icel. smokkr, from 'smogn*, smock; OE. lōcían, OS. lōkōn, from *lōgn- or *\ōya··, to look. § 141. Indg. z +media became s + tenuis, as Goth, asts, OHG, ast = Gr. 3£os, from *ozdos, branch, twig; OE. OHG. nest, Lat. nidus, from *ni-zđos, nest, related to root sed-, sit; OE. masc, OHG. masca, mesh, net, cp. Lithuanian mezgu, / tie in knots. Indg. z + media aspirata became z + voiced spirant, as Goth, mizđō, OE. meord, pay, reward, cp. O. Bulgarian mlzđa, Gr. μισθ09, pay; OE. mearg, OHG. marg, O. Bulgarian mozgu, marrow, root mezgh-; Goth, huzd, OE. hord, OHG. hort, hoard, treasure, root kuzdh·. § 142. Guttural η (η) disappeared before χ, as Goth. OS. OHG. fāhan, OE. fōn, from *farjxanan, to seize; Goth. OS. OHG. hāhan, OE. hōn, from *xarjxanan, to hang; Goth, þelhan, OS. thīhan, OHG. dīhan, OE. þīon, þēon, from *þirjxanan, to thrive; pret. Goth, þāhta, OE. þōhte, OS. thāhta, OHG. đāhta, from *þaijxtō-, I thought, beside inf. Goth, þagkjan, OS. thenkian, OHG. denken, OE. þencan. § 143. χ became an aspirate (written h) initially before vowels, as Goth. OE, OS. hund, OHG. hunt, from *xunđan, prim, form *kmtom, hundred; Goth, hunds, O.Icel. hundr, OE. OS. hund, OHG. hunt, from *xunđaz, dog, hound. Some scholars assume that it also became an aspirate medially between vowels. Upon this assumption it would be difficult to account for the breaking in OE., as