† Hattismn.
Origin: Formed within English, by derivation. Etymons: Hatti n.2, -ism suffix.
Etymology: < Hatti n.2 + -ism suffix.
Obsolete.
rare.
1925 J. B. Bury et al. III. vii. 161 Of the persistence of its Hattism a sufficient proof is its conservation of the Hattic script.
1926 D. G. Hogarth 3 The Hittite civilization of Hamath was but an outlier of ‘Hattism’, advanced southward along a trunk-road.
This entry has been updated (OED Third Edition, March 2017; most recently modified version published online June 2018).