Grice's Explanation -- "Strawson said my explanation required an explanation"

ex-plāno , āvi, ātum, 1, v. a. * I. Lit., to flatten or spread out: “suberi cortex in denos pedes undique explanatus,” Plin. 16, 8, 13, § 34.— II. Trop., of speech, to make plain or clear, to explain (class.: “syn.: explico, expono, interpretor): qualis differentia sit honesti et decori, facilius intelligi quam explanari potest,” Cic. Off. 1, 27, 94; cf. Quint. 5, 10, 4: “rem latentem explicare definiendo, obscuram explanare interpretando, etc.,” Cic. Brut. 42, 152: “explanare apertiusque dicere aliquid,” id. Fin. 2, 19, 60: “docere et explanare,” id. Off. 1, 28, 101: “aliquid conjecturā,” id. de Or. 2, 69, 280: “rem,” id. Or. 24, 80: “quem amicum tuum ais fuisse istum, explana mihi,” Ter. Ph. 2, 3, 33: “de cujus hominis moribus pauca prius explananda sunt, quam initium narrandi faciam,” Sall. C. 4, 5.—Pass. impers.: “juxta quod flumen, aut ubi fuerit, non satis explanatur,” Plin. 6, 23, 26, § 97.— 2. To utter distinctly: “et ille juravit, expressit, explanavitque verba, quibus, etc.,” Plin. Pan. 64, 3.—Hence, explānātus , a, um, P. a. (acc. to II.), plain, distinct (rare): “claritas in voce, in lingua etiam explanata vocum impressio,” i. e. an articulate pronunciation, Cic. Ac. 1, 5, 19: parum explanatis vocibus sermo praeruptus, Sen. de Ira, 1, 1, 4.—Adv. ex-plānāte , plainly, clearly, distinctly: “scriptum,” Gell. 16, 8, 3.—Comp.: “ut definire rem cum explanatius, tum etiam uberius (opp. presse et anguste),” Cic. Or. 33, 117.