The user wants to know about the roots of the verbs "освободил" and "обидел", and the suffixes and endings used to form the past tense. They also want to compare the spelling of letters before the suffixes -ть and -л- in the given verb forms. Finally, they want to know the root word that connects to these verbs.

Analysis of Verbs and Root Word

• The root word that connects to the verbs "освободил" (freed) and "обидел" (offended) is «свобода» (freedom).
• The verbs are formed from the root «свобод-».
• The verbs provided are in the past tense, masculine singular form. They are formed using the past tense suffix -л- and the endings appropriate for the gender and number of the subject (e.g., -а for feminine, -о for neuter, -и for plural).
• In the infinitive form, the suffix -и- is present before the infinitive ending -ть (e.g., освободи-ть, обиде-ть).
• The question asks to compare the spelling of letters before the suffixes -ть and -л-. In the infinitive forms "освободить" and "обидеть", the letters before -ть are 'и' and 'е' respectively. In the past tense forms "освободил" and "обидел", the letters before -л- are 'и' and 'е' respectively.
• The verbs "освободил" and "обидел" are examples of how verbs can be formed with different stem vowels in the infinitive and past tense, and how these changes relate to the root word.

Root Word Connection

The word «свобода» (freedom) is the root word. From this noun, the verb "освободить" (to free) is derived. The verb "обидеть" (to offend) is also related, though less directly, through the concept of affecting someone's state or freedom.