Can somebody explain what these terms mean? The book just tells me which Greek letters belong to each category, but it does not explain what the terms mean.
Pages 9 and 10 of Goodwin’s Greek Grammar (available on Textkit!!) have a decent explanation of the words you have cited.
The words ‘labial, palatal and lingual’ refer to the part of the mouth which is used to pronounce a letter. Thus p b f m[face=Arial][/face] are labials because the lips are used to produce the letters. Goodwin’s divisions are:
labials p, b, f, m[face=Arial][/face]
palatals k, g, x[face=Arial][/face]
linguals t, d, q, s, l, n, r[face=Arial][/face]
Another way of classifying consonants is to divide them into semivowels and mutes. The semivowels are l, m, n, r, s, [face=Arial][/face] and nasal g[face=Arial][/face].
Of these, l, m, n, r [face=Arial][/face]are liquids,
m, n, [face=Arial][/face] and nasal g [face=Arial][/face]are nasals,
s[face=Arial][/face] is a spirant or sibilant.
The mutes are of 3 orders:
smooth mutes: p k t[face=Arial][/face]
middle mutes: b g d[face=Arial][/face]
rough mutes: f x q [face=Arial][/face]
I’ve just looked at my reply to you, and I see that I have failed to get SPIonic to work! The letter q stands for theta, x for chi and f for phi.
Sorry!
I agree that it’s a good idea to take a look at Goodwin’s Greek Grammar when you need further clarification.
This is no error on White’s part - his First Greek Book is excellent. But it was written in the context of classroom use with an instructor. So White’s FGB is at times a bit thin because he assumes the teacher will provide additional clarification.